Finding the Fourth Proportional to 9,152.18, 12,630.21 and 5,613.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.18 : 12,630.21 = 5,613.30 : x
2. Step 2: Convert to fraction form
   9,152.18/12,630.21 = 5,613.30/x
3. Step 3: Cross multiply
   9,152.18x = 12,630.21 × 5,613.30
4. Step 4: Simplify right side
   9,152.18x = 70,897,157.79
5. Step 5: Solve for x
   x = 70,897,157.79/9,152.18
6. Step 6: Final answer
   x = 7,746.48