Finding the Fourth Proportional to 8,839.31, 13,263.18 and 5,141.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,839.31 : 13,263.18 = 5,141.83 : x
2. Step 2: Convert to fraction form
   8,839.31/13,263.18 = 5,141.83/x
3. Step 3: Cross multiply
   8,839.31x = 13,263.18 × 5,141.83
4. Step 4: Simplify right side
   8,839.31x = 68,196,989.25
5. Step 5: Solve for x
   x = 68,196,989.25/8,839.31
6. Step 6: Final answer
   x = 7,715.19