Finding the Fourth Proportional to 155,341,108,192.72, 212,813,779,154.82 and 149,533,153,646.98

Step by Step Solution

1. Step 1: Write the proportion equation
   155,341,108,192.72 : 212,813,779,154.82 = 149,533,153,646.98 : x
2. Step 2: Convert to fraction form
   155,341,108,192.72/212,813,779,154.82 = 149,533,153,646.98/x
3. Step 3: Cross multiply
   155,341,108,192.72x = 212,813,779,154.82 × 149,533,153,646.98
4. Step 4: Simplify right side
   155,341,108,192.72x = 31,822,715,536,552,172,191,744
5. Step 5: Solve for x
   x = 31,822,715,536,552,172,191,744/155,341,108,192.72
6. Step 6: Final answer
   x = 204,857,013,747.27