Finding the Fourth Proportional to 8,757.51, 12,086.37 and 4,877.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.51 : 12,086.37 = 4,877.31 : x
2. Step 2: Convert to fraction form
   8,757.51/12,086.37 = 4,877.31/x
3. Step 3: Cross multiply
   8,757.51x = 12,086.37 × 4,877.31
4. Step 4: Simplify right side
   8,757.51x = 58,948,973.26
5. Step 5: Solve for x
   x = 58,948,973.26/8,757.51
6. Step 6: Final answer
   x = 6,731.25