Finding the Fourth Proportional to 9,132.54, 12,602.70 and 5,153.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,132.54 : 12,602.70 = 5,153.55 : x
2. Step 2: Convert to fraction form
   9,132.54/12,602.70 = 5,153.55/x
3. Step 3: Cross multiply
   9,132.54x = 12,602.70 × 5,153.55
4. Step 4: Simplify right side
   9,132.54x = 64,948,644.59
5. Step 5: Solve for x
   x = 64,948,644.59/9,132.54
6. Step 6: Final answer
   x = 7,111.78