Finding the Fourth Proportional to 23,756.55, 32,784.71 and 13,147.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,756.55 : 32,784.71 = 13,147.17 : x
2. Step 2: Convert to fraction form
   23,756.55/32,784.71 = 13,147.17/x
3. Step 3: Cross multiply
   23,756.55x = 32,784.71 × 13,147.17
4. Step 4: Simplify right side
   23,756.55x = 431,026,155.77
5. Step 5: Solve for x
   x = 431,026,155.77/23,756.55
6. Step 6: Final answer
   x = 18,143.47