Finding the Fourth Proportional to 72,007,104.76, 99,370,055.47 and 38,967,345.61

Step by Step Solution

1. Step 1: Write the proportion equation
   72,007,104.76 : 99,370,055.47 = 38,967,345.61 : x
2. Step 2: Convert to fraction form
   72,007,104.76/99,370,055.47 = 38,967,345.61/x
3. Step 3: Cross multiply
   72,007,104.76x = 99,370,055.47 × 38,967,345.61
4. Step 4: Simplify right side
   72,007,104.76x = 3,872,187,294,287,510.50
5. Step 5: Solve for x
   x = 3,872,187,294,287,510.50/72,007,104.76
6. Step 6: Final answer
   x = 53,775,072.72