Finding the Fourth Proportional to 14,642.88, 21,969.72 and 5,283.60

Step by Step Solution

1. Step 1: Write the proportion equation
   14,642.88 : 21,969.72 = 5,283.60 : x
2. Step 2: Convert to fraction form
   14,642.88/21,969.72 = 5,283.60/x
3. Step 3: Cross multiply
   14,642.88x = 21,969.72 × 5,283.60
4. Step 4: Simplify right side
   14,642.88x = 116,079,212.59
5. Step 5: Solve for x
   x = 116,079,212.59/14,642.88
6. Step 6: Final answer
   x = 7,927.35