Finding the Fourth Proportional to 52,641.72, 72,622.24 and 31,408.64

Step by Step Solution

1. Step 1: Write the proportion equation
   52,641.72 : 72,622.24 = 31,408.64 : x
2. Step 2: Convert to fraction form
   52,641.72/72,622.24 = 31,408.64/x
3. Step 3: Cross multiply
   52,641.72x = 72,622.24 × 31,408.64
4. Step 4: Simplify right side
   52,641.72x = 2,280,965,792.15
5. Step 5: Solve for x
   x = 2,280,965,792.15/52,641.72
6. Step 6: Final answer
   x = 43,330.00