Finding the Fourth Proportional to 14,439.34, 21,619.86 and 7,499.26

Step by Step Solution

1. Step 1: Write the proportion equation
   14,439.34 : 21,619.86 = 7,499.26 : x
2. Step 2: Convert to fraction form
   14,439.34/21,619.86 = 7,499.26/x
3. Step 3: Cross multiply
   14,439.34x = 21,619.86 × 7,499.26
4. Step 4: Simplify right side
   14,439.34x = 162,132,951.30
5. Step 5: Solve for x
   x = 162,132,951.30/14,439.34
6. Step 6: Final answer
   x = 11,228.56