Finding the Fourth Proportional to 72,456.47, 99,943.93 and 52,342.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,456.47 : 99,943.93 = 52,342.91 : x
2. Step 2: Convert to fraction form
   72,456.47/99,943.93 = 52,342.91/x
3. Step 3: Cross multiply
   72,456.47x = 99,943.93 × 52,342.91
4. Step 4: Simplify right side
   72,456.47x = 5,231,355,779.11
5. Step 5: Solve for x
   x = 5,231,355,779.11/72,456.47
6. Step 6: Final answer
   x = 72,199.98