Finding the Fourth Proportional to 8,776.13, 12,111.05 and 5,052.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.13 : 12,111.05 = 5,052.29 : x
2. Step 2: Convert to fraction form
   8,776.13/12,111.05 = 5,052.29/x
3. Step 3: Cross multiply
   8,776.13x = 12,111.05 × 5,052.29
4. Step 4: Simplify right side
   8,776.13x = 61,188,488.88
5. Step 5: Solve for x
   x = 61,188,488.88/8,776.13
6. Step 6: Final answer
   x = 6,972.15