Finding the Fourth Proportional to 139,007,345.43, 208,523,271.71 and 51,569,875.29

Step by Step Solution

1. Step 1: Write the proportion equation
   139,007,345.43 : 208,523,271.71 = 51,569,875.29 : x
2. Step 2: Convert to fraction form
   139,007,345.43/208,523,271.71 = 51,569,875.29/x
3. Step 3: Cross multiply
   139,007,345.43x = 208,523,271.71 × 51,569,875.29
4. Step 4: Simplify right side
   139,007,345.43x = 10,753,519,117,147,486
5. Step 5: Solve for x
   x = 10,753,519,117,147,486/139,007,345.43
6. Step 6: Final answer
   x = 77,359,358.84