Finding the Fourth Proportional to 14,086.41, 19,439.85 and 7,798.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.41 : 19,439.85 = 7,798.78 : x
2. Step 2: Convert to fraction form
   14,086.41/19,439.85 = 7,798.78/x
3. Step 3: Cross multiply
   14,086.41x = 19,439.85 × 7,798.78
4. Step 4: Simplify right side
   14,086.41x = 151,607,123.06
5. Step 5: Solve for x
   x = 151,607,123.06/14,086.41
6. Step 6: Final answer
   x = 10,762.65