Finding the Fourth Proportional to 8,976.45, 12,385.69 and 5,437.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.45 : 12,385.69 = 5,437.61 : x
2. Step 2: Convert to fraction form
   8,976.45/12,385.69 = 5,437.61/x
3. Step 3: Cross multiply
   8,976.45x = 12,385.69 × 5,437.61
4. Step 4: Simplify right side
   8,976.45x = 67,348,551.80
5. Step 5: Solve for x
   x = 67,348,551.80/8,976.45
6. Step 6: Final answer
   x = 7,502.80