Finding the Fourth Proportional to 9,008.32, 12,430.80 and 5,423.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,008.32 : 12,430.80 = 5,423.46 : x
2. Step 2: Convert to fraction form
   9,008.32/12,430.80 = 5,423.46/x
3. Step 3: Cross multiply
   9,008.32x = 12,430.80 × 5,423.46
4. Step 4: Simplify right side
   9,008.32x = 67,417,946.57
5. Step 5: Solve for x
   x = 67,417,946.57/9,008.32
6. Step 6: Final answer
   x = 7,483.96