Finding the Fourth Proportional to 31,528.48, 43,508.72 and 17,188.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,528.48 : 43,508.72 = 17,188.46 : x
2. Step 2: Convert to fraction form
   31,528.48/43,508.72 = 17,188.46/x
3. Step 3: Cross multiply
   31,528.48x = 43,508.72 × 17,188.46
4. Step 4: Simplify right side
   31,528.48x = 747,847,893.37
5. Step 5: Solve for x
   x = 747,847,893.37/31,528.48
6. Step 6: Final answer
   x = 23,719.76