Finding the Fourth Proportional to 9,432.50, 13,017.20 and 5,656.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,432.50 : 13,017.20 = 5,656.28 : x
2. Step 2: Convert to fraction form
   9,432.50/13,017.20 = 5,656.28/x
3. Step 3: Cross multiply
   9,432.50x = 13,017.20 × 5,656.28
4. Step 4: Simplify right side
   9,432.50x = 73,628,928.02
5. Step 5: Solve for x
   x = 73,628,928.02/9,432.50
6. Step 6: Final answer
   x = 7,805.88