Finding the Fourth Proportional to 8,877.49, 12,251.69 and 5,151.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,877.49 : 12,251.69 = 5,151.25 : x
2. Step 2: Convert to fraction form
   8,877.49/12,251.69 = 5,151.25/x
3. Step 3: Cross multiply
   8,877.49x = 12,251.69 × 5,151.25
4. Step 4: Simplify right side
   8,877.49x = 63,111,492.36
5. Step 5: Solve for x
   x = 63,111,492.36/8,877.49
6. Step 6: Final answer
   x = 7,109.16