Finding the Fourth Proportional to 21,462.59, 32,158.23 and 15,191.57

Step by Step Solution

1. Step 1: Write the proportion equation
   21,462.59 : 32,158.23 = 15,191.57 : x
2. Step 2: Convert to fraction form
   21,462.59/32,158.23 = 15,191.57/x
3. Step 3: Cross multiply
   21,462.59x = 32,158.23 × 15,191.57
4. Step 4: Simplify right side
   21,462.59x = 488,533,841.33
5. Step 5: Solve for x
   x = 488,533,841.33/21,462.59
6. Step 6: Final answer
   x = 22,762.12