Finding the Fourth Proportional to 72,003,882.98, 99,365,620.05 and 38,964,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,003,882.98 : 99,365,620.05 = 38,964,128.52 : x
2. Step 2: Convert to fraction form
   72,003,882.98/99,365,620.05 = 38,964,128.52/x
3. Step 3: Cross multiply
   72,003,882.98x = 99,365,620.05 × 38,964,128.52
4. Step 4: Simplify right side
   72,003,882.98x = 3,871,694,790,097,689
5. Step 5: Solve for x
   x = 3,871,694,790,097,689/72,003,882.98
6. Step 6: Final answer
   x = 53,770,638.89