Finding the Fourth Proportional to 8,724.17, 12,071.04 and 7,607.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,724.17 : 12,071.04 = 7,607.43 : x
2. Step 2: Convert to fraction form
   8,724.17/12,071.04 = 7,607.43/x
3. Step 3: Cross multiply
   8,724.17x = 12,071.04 × 7,607.43
4. Step 4: Simplify right side
   8,724.17x = 91,829,591.83
5. Step 5: Solve for x
   x = 91,829,591.83/8,724.17
6. Step 6: Final answer
   x = 10,525.88