Finding the Fourth Proportional to 9,129.93, 12,600.50 and 5,152.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,129.93 : 12,600.50 = 5,152.02 : x
2. Step 2: Convert to fraction form
   9,129.93/12,600.50 = 5,152.02/x
3. Step 3: Cross multiply
   9,129.93x = 12,600.50 × 5,152.02
4. Step 4: Simplify right side
   9,129.93x = 64,918,002.25
5. Step 5: Solve for x
   x = 64,918,002.25/9,129.93
6. Step 6: Final answer
   x = 7,110.46