Finding the Fourth Proportional to 14,128.73, 21,192.55 and 5,698.86

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.73 : 21,192.55 = 5,698.86 : x
2. Step 2: Convert to fraction form
   14,128.73/21,192.55 = 5,698.86/x
3. Step 3: Cross multiply
   14,128.73x = 21,192.55 × 5,698.86
4. Step 4: Simplify right side
   14,128.73x = 120,773,313.83
5. Step 5: Solve for x
   x = 120,773,313.83/14,128.73
6. Step 6: Final answer
   x = 8,548.07