Finding the Fourth Proportional to 8,878.83, 12,248.72 and 5,152.11

Step by Step Solution

1. Step 1: Write the proportion equation
   8,878.83 : 12,248.72 = 5,152.11 : x
2. Step 2: Convert to fraction form
   8,878.83/12,248.72 = 5,152.11/x
3. Step 3: Cross multiply
   8,878.83x = 12,248.72 × 5,152.11
4. Step 4: Simplify right side
   8,878.83x = 63,106,727.04
5. Step 5: Solve for x
   x = 63,106,727.04/8,878.83
6. Step 6: Final answer
   x = 7,107.55