Finding the Fourth Proportional to 23,478, 32,402.52 and 13,542

Step by Step Solution

1. Step 1: Write the proportion equation
   23,478 : 32,402.52 = 13,542 : x
2. Step 2: Convert to fraction form
   23,478/32,402.52 = 13,542/x
3. Step 3: Cross multiply
   23,478x = 32,402.52 × 13,542
4. Step 4: Simplify right side
   23,478x = 438,794,925.84
5. Step 5: Solve for x
   x = 438,794,925.84/23,478
6. Step 6: Final answer
   x = 18,689.62