Finding the Fourth Proportional to 72,396.52, 99,897.06 and 40,562.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,396.52 : 99,897.06 = 40,562.92 : x
2. Step 2: Convert to fraction form
   72,396.52/99,897.06 = 40,562.92/x
3. Step 3: Cross multiply
   72,396.52x = 99,897.06 × 40,562.92
4. Step 4: Simplify right side
   72,396.52x = 4,052,116,453.02
5. Step 5: Solve for x
   x = 4,052,116,453.02/72,396.52
6. Step 6: Final answer
   x = 55,971.15