Finding the Fourth Proportional to 23,148.31, 31,943.01 and 13,588.59

Step by Step Solution

1. Step 1: Write the proportion equation
   23,148.31 : 31,943.01 = 13,588.59 : x
2. Step 2: Convert to fraction form
   23,148.31/31,943.01 = 13,588.59/x
3. Step 3: Cross multiply
   23,148.31x = 31,943.01 × 13,588.59
4. Step 4: Simplify right side
   23,148.31x = 434,060,478.10
5. Step 5: Solve for x
   x = 434,060,478.10/23,148.31
6. Step 6: Final answer
   x = 18,751.28