Finding the Fourth Proportional to 23,807.50, 32,856.73 and 13,199.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,807.50 : 32,856.73 = 13,199.17 : x
2. Step 2: Convert to fraction form
   23,807.50/32,856.73 = 13,199.17/x
3. Step 3: Cross multiply
   23,807.50x = 32,856.73 × 13,199.17
4. Step 4: Simplify right side
   23,807.50x = 433,681,564.91
5. Step 5: Solve for x
   x = 433,681,564.91/23,807.50
6. Step 6: Final answer
   x = 18,216.17