Finding the Fourth Proportional to 21,518,734.38, 32,280,897.69 and 8,739,655.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,518,734.38 : 32,280,897.69 = 8,739,655.98 : x
2. Step 2: Convert to fraction form
   21,518,734.38/32,280,897.69 = 8,739,655.98/x
3. Step 3: Cross multiply
   21,518,734.38x = 32,280,897.69 × 8,739,655.98
4. Step 4: Simplify right side
   21,518,734.38x = 282,123,940,536,176.69
5. Step 5: Solve for x
   x = 282,123,940,536,176.69/21,518,734.38
6. Step 6: Final answer
   x = 13,110,619.59