Finding the Fourth Proportional to 9,050.56, 12,490.88 and 5,514.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.56 : 12,490.88 = 5,514.28 : x
2. Step 2: Convert to fraction form
   9,050.56/12,490.88 = 5,514.28/x
3. Step 3: Cross multiply
   9,050.56x = 12,490.88 × 5,514.28
4. Step 4: Simplify right side
   9,050.56x = 68,878,209.77
5. Step 5: Solve for x
   x = 68,878,209.77/9,050.56
6. Step 6: Final answer
   x = 7,610.38