Finding the Fourth Proportional to 57,005.60, 85,517.76 and 17,562.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,005.60 : 85,517.76 = 17,562.72 : x
2. Step 2: Convert to fraction form
   57,005.60/85,517.76 = 17,562.72/x
3. Step 3: Cross multiply
   57,005.60x = 85,517.76 × 17,562.72
4. Step 4: Simplify right side
   57,005.60x = 1,501,924,473.91
5. Step 5: Solve for x
   x = 1,501,924,473.91/57,005.60
6. Step 6: Final answer
   x = 26,346.96