Finding the Fourth Proportional to 400,847,014.72, 601,123,044.84 and 138,464,799.04

Step by Step Solution

1. Step 1: Write the proportion equation
   400,847,014.72 : 601,123,044.84 = 138,464,799.04 : x
2. Step 2: Convert to fraction form
   400,847,014.72/601,123,044.84 = 138,464,799.04/x
3. Step 3: Cross multiply
   400,847,014.72x = 601,123,044.84 × 138,464,799.04
4. Step 4: Simplify right side
   400,847,014.72x = 83,234,381,602,083,504
5. Step 5: Solve for x
   x = 83,234,381,602,083,504/400,847,014.72
6. Step 6: Final answer
   x = 207,646,255.42