Finding the Fourth Proportional to 72,003,008.94, 99,364,753.28 and 42,251,447.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,003,008.94 : 99,364,753.28 = 42,251,447.31 : x
2. Step 2: Convert to fraction form
   72,003,008.94/99,364,753.28 = 42,251,447.31/x
3. Step 3: Cross multiply
   72,003,008.94x = 99,364,753.28 × 42,251,447.31
4. Step 4: Simplify right side
   72,003,008.94x = 4,198,304,637,469,813
5. Step 5: Solve for x
   x = 4,198,304,637,469,813/72,003,008.94
6. Step 6: Final answer
   x = 58,307,349.92