Finding the Fourth Proportional to 23,380.47, 32,240.50 and 15,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,380.47 : 32,240.50 = 15,412.50 : x
2. Step 2: Convert to fraction form
   23,380.47/32,240.50 = 15,412.50/x
3. Step 3: Cross multiply
   23,380.47x = 32,240.50 × 15,412.50
4. Step 4: Simplify right side
   23,380.47x = 496,906,667.72
5. Step 5: Solve for x
   x = 496,906,667.72/23,380.47
6. Step 6: Final answer
   x = 21,253.07