Finding the Fourth Proportional to 52,620.32, 72,617.46 and 31,411.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,620.32 : 72,617.46 = 31,411.89 : x
2. Step 2: Convert to fraction form
   52,620.32/72,617.46 = 31,411.89/x
3. Step 3: Cross multiply
   52,620.32x = 72,617.46 × 31,411.89
4. Step 4: Simplify right side
   52,620.32x = 2,281,051,665.60
5. Step 5: Solve for x
   x = 2,281,051,665.60/52,620.32
6. Step 6: Final answer
   x = 43,349.26