Finding the Fourth Proportional to 8,250.71, 12,373.56 and 2,985.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,250.71 : 12,373.56 = 2,985.12 : x
2. Step 2: Convert to fraction form
   8,250.71/12,373.56 = 2,985.12/x
3. Step 3: Cross multiply
   8,250.71x = 12,373.56 × 2,985.12
4. Step 4: Simplify right side
   8,250.71x = 36,936,561.43
5. Step 5: Solve for x
   x = 36,936,561.43/8,250.71
6. Step 6: Final answer
   x = 4,476.78