Finding the Fourth Proportional to 72,314.16, 99,792.50 and 40,045.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,314.16 : 99,792.50 = 40,045.72 : x
2. Step 2: Convert to fraction form
   72,314.16/99,792.50 = 40,045.72/x
3. Step 3: Cross multiply
   72,314.16x = 99,792.50 × 40,045.72
4. Step 4: Simplify right side
   72,314.16x = 3,996,262,513.10
5. Step 5: Solve for x
   x = 3,996,262,513.10/72,314.16
6. Step 6: Final answer
   x = 55,262.52