Finding the Fourth Proportional to 72,174,897.33, 99,601,250.61 and 39,135,086.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,174,897.33 : 99,601,250.61 = 39,135,086.43 : x
2. Step 2: Convert to fraction form
   72,174,897.33/99,601,250.61 = 39,135,086.43/x
3. Step 3: Cross multiply
   72,174,897.33x = 99,601,250.61 × 39,135,086.43
4. Step 4: Simplify right side
   72,174,897.33x = 3,897,903,551,158,440
5. Step 5: Solve for x
   x = 3,897,903,551,158,440/72,174,897.33
6. Step 6: Final answer
   x = 54,006,360.87