Finding the Fourth Proportional to 14,088.41, 19,442.61 and 7,800.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,088.41 : 19,442.61 = 7,800.78 : x
2. Step 2: Convert to fraction form
   14,088.41/19,442.61 = 7,800.78/x
3. Step 3: Cross multiply
   14,088.41x = 19,442.61 × 7,800.78
4. Step 4: Simplify right side
   14,088.41x = 151,667,523.24
5. Step 5: Solve for x
   x = 151,667,523.24/14,088.41
6. Step 6: Final answer
   x = 10,765.41