Finding the Fourth Proportional to 8,807.73, 13,191.31 and 5,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,807.73 : 13,191.31 = 5,100.76 : x
2. Step 2: Convert to fraction form
   8,807.73/13,191.31 = 5,100.76/x
3. Step 3: Cross multiply
   8,807.73x = 13,191.31 × 5,100.76
4. Step 4: Simplify right side
   8,807.73x = 67,285,706.40
5. Step 5: Solve for x
   x = 67,285,706.40/8,807.73
6. Step 6: Final answer
   x = 7,639.39