Finding the Fourth Proportional to 14,086.48, 19,439.20 and 7,798.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.48 : 19,439.20 = 7,798.72 : x
2. Step 2: Convert to fraction form
   14,086.48/19,439.20 = 7,798.72/x
3. Step 3: Cross multiply
   14,086.48x = 19,439.20 × 7,798.72
4. Step 4: Simplify right side
   14,086.48x = 151,600,877.82
5. Step 5: Solve for x
   x = 151,600,877.82/14,086.48
6. Step 6: Final answer
   x = 10,762.15