Finding the Fourth Proportional to 11,700.62, 16,150.70 and 9,314.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,700.62 : 16,150.70 = 9,314.98 : x
2. Step 2: Convert to fraction form
   11,700.62/16,150.70 = 9,314.98/x
3. Step 3: Cross multiply
   11,700.62x = 16,150.70 × 9,314.98
4. Step 4: Simplify right side
   11,700.62x = 150,443,447.49
5. Step 5: Solve for x
   x = 150,443,447.49/11,700.62
6. Step 6: Final answer
   x = 12,857.73