Finding the Fourth Proportional to 12,681.61, 17,501.72 and 7,376.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,681.61 : 17,501.72 = 7,376.06 : x
2. Step 2: Convert to fraction form
   12,681.61/17,501.72 = 7,376.06/x
3. Step 3: Cross multiply
   12,681.61x = 17,501.72 × 7,376.06
4. Step 4: Simplify right side
   12,681.61x = 129,093,785.19
5. Step 5: Solve for x
   x = 129,093,785.19/12,681.61
6. Step 6: Final answer
   x = 10,179.60