Finding the Fourth Proportional to 72,276,905.98, 99,698,313.27 and 42,888,874.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,276,905.98 : 99,698,313.27 = 42,888,874.78 : x
2. Step 2: Convert to fraction form
   72,276,905.98/99,698,313.27 = 42,888,874.78/x
3. Step 3: Cross multiply
   72,276,905.98x = 99,698,313.27 × 42,888,874.78
4. Step 4: Simplify right side
   72,276,905.98x = 4,275,948,473,614,242.50
5. Step 5: Solve for x
   x = 4,275,948,473,614,242.50/72,276,905.98
6. Step 6: Final answer
   x = 59,160,646.35