Finding the Fourth Proportional to 14,488.08, 21,741.86 and 5,128.07

Step by Step Solution

1. Step 1: Write the proportion equation
   14,488.08 : 21,741.86 = 5,128.07 : x
2. Step 2: Convert to fraction form
   14,488.08/21,741.86 = 5,128.07/x
3. Step 3: Cross multiply
   14,488.08x = 21,741.86 × 5,128.07
4. Step 4: Simplify right side
   14,488.08x = 111,493,684.12
5. Step 5: Solve for x
   x = 111,493,684.12/14,488.08
6. Step 6: Final answer
   x = 7,695.55