Finding the Fourth Proportional to 8,759.78, 12,088.34 and 4,931.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,759.78 : 12,088.34 = 4,931.42 : x
2. Step 2: Convert to fraction form
   8,759.78/12,088.34 = 4,931.42/x
3. Step 3: Cross multiply
   8,759.78x = 12,088.34 × 4,931.42
4. Step 4: Simplify right side
   8,759.78x = 59,612,666.03
5. Step 5: Solve for x
   x = 59,612,666.03/8,759.78
6. Step 6: Final answer
   x = 6,805.27