Finding the Fourth Proportional to 12,695.32, 17,519.72 and 7,314.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,695.32 : 17,519.72 = 7,314.78 : x
2. Step 2: Convert to fraction form
   12,695.32/17,519.72 = 7,314.78/x
3. Step 3: Cross multiply
   12,695.32x = 17,519.72 × 7,314.78
4. Step 4: Simplify right side
   12,695.32x = 128,152,897.46
5. Step 5: Solve for x
   x = 128,152,897.46/12,695.32
6. Step 6: Final answer
   x = 10,094.50