Finding the Fourth Proportional to 12,700.61, 17,526.96 and 7,663.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.61 : 17,526.96 = 7,663.86 : x
2. Step 2: Convert to fraction form
   12,700.61/17,526.96 = 7,663.86/x
3. Step 3: Cross multiply
   12,700.61x = 17,526.96 × 7,663.86
4. Step 4: Simplify right side
   12,700.61x = 134,324,167.67
5. Step 5: Solve for x
   x = 134,324,167.67/12,700.61
6. Step 6: Final answer
   x = 10,576.20