Finding the Fourth Proportional to 8,763.31, 12,094.43 and 4,987.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,763.31 : 12,094.43 = 4,987.40 : x
2. Step 2: Convert to fraction form
   8,763.31/12,094.43 = 4,987.40/x
3. Step 3: Cross multiply
   8,763.31x = 12,094.43 × 4,987.40
4. Step 4: Simplify right side
   8,763.31x = 60,319,702.83
5. Step 5: Solve for x
   x = 60,319,702.83/8,763.31
6. Step 6: Final answer
   x = 6,883.21