Finding the Fourth Proportional to 12,700.94, 17,529.42 and 7,398.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.94 : 17,529.42 = 7,398.86 : x
2. Step 2: Convert to fraction form
   12,700.94/17,529.42 = 7,398.86/x
3. Step 3: Cross multiply
   12,700.94x = 17,529.42 × 7,398.86
4. Step 4: Simplify right side
   12,700.94x = 129,697,724.46
5. Step 5: Solve for x
   x = 129,697,724.46/12,700.94
6. Step 6: Final answer
   x = 10,211.66