Finding the Fourth Proportional to 8,976.71, 12,386.04 and 5,437.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.71 : 12,386.04 = 5,437.86 : x
2. Step 2: Convert to fraction form
   8,976.71/12,386.04 = 5,437.86/x
3. Step 3: Cross multiply
   8,976.71x = 12,386.04 × 5,437.86
4. Step 4: Simplify right side
   8,976.71x = 67,353,551.47
5. Step 5: Solve for x
   x = 67,353,551.47/8,976.71
6. Step 6: Final answer
   x = 7,503.15