Finding the Fourth Proportional to 72,416.76, 99,937.98 and 40,585.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,416.76 : 99,937.98 = 40,585.38 : x
2. Step 2: Convert to fraction form
   72,416.76/99,937.98 = 40,585.38/x
3. Step 3: Cross multiply
   72,416.76x = 99,937.98 × 40,585.38
4. Step 4: Simplify right side
   72,416.76x = 4,056,020,894.73
5. Step 5: Solve for x
   x = 4,056,020,894.73/72,416.76
6. Step 6: Final answer
   x = 56,009.42