Finding the Fourth Proportional to 14,123.78, 19,490.15 and 7,750.22

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123.78 : 19,490.15 = 7,750.22 : x
2. Step 2: Convert to fraction form
   14,123.78/19,490.15 = 7,750.22/x
3. Step 3: Cross multiply
   14,123.78x = 19,490.15 × 7,750.22
4. Step 4: Simplify right side
   14,123.78x = 151,052,950.33
5. Step 5: Solve for x
   x = 151,052,950.33/14,123.78
6. Step 6: Final answer
   x = 10,694.94