Finding the Fourth Proportional to 12,552.50, 17,316.96 and 7,771.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,552.50 : 17,316.96 = 7,771.16 : x
2. Step 2: Convert to fraction form
   12,552.50/17,316.96 = 7,771.16/x
3. Step 3: Cross multiply
   12,552.50x = 17,316.96 × 7,771.16
4. Step 4: Simplify right side
   12,552.50x = 134,572,780.29
5. Step 5: Solve for x
   x = 134,572,780.29/12,552.50
6. Step 6: Final answer
   x = 10,720.80