Finding the Fourth Proportional to 9,036.06, 12,470.88 and 5,499.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.06 : 12,470.88 = 5,499.78 : x
2. Step 2: Convert to fraction form
   9,036.06/12,470.88 = 5,499.78/x
3. Step 3: Cross multiply
   9,036.06x = 12,470.88 × 5,499.78
4. Step 4: Simplify right side
   9,036.06x = 68,587,096.41
5. Step 5: Solve for x
   x = 68,587,096.41/9,036.06
6. Step 6: Final answer
   x = 7,590.38