Finding the Fourth Proportional to 14,453.34, 21,679.52 and 6,128.00

Step by Step Solution

1. Step 1: Write the proportion equation
   14,453.34 : 21,679.52 = 6,128.00 : x
2. Step 2: Convert to fraction form
   14,453.34/21,679.52 = 6,128.00/x
3. Step 3: Cross multiply
   14,453.34x = 21,679.52 × 6,128.00
4. Step 4: Simplify right side
   14,453.34x = 132,851,959.52
5. Step 5: Solve for x
   x = 132,851,959.52/14,453.34
6. Step 6: Final answer
   x = 9,191.78