Finding the Fourth Proportional to 31,779.57, 43,857.27 and 17,631.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,779.57 : 43,857.27 = 17,631.57 : x
2. Step 2: Convert to fraction form
   31,779.57/43,857.27 = 17,631.57/x
3. Step 3: Cross multiply
   31,779.57x = 43,857.27 × 17,631.57
4. Step 4: Simplify right side
   31,779.57x = 773,272,526.01
5. Step 5: Solve for x
   x = 773,272,526.01/31,779.57
6. Step 6: Final answer
   x = 24,332.38