Finding the Fourth Proportional to 14,061.06, 21,092.46 and 5,178.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,061.06 : 21,092.46 = 5,178.78 : x
2. Step 2: Convert to fraction form
   14,061.06/21,092.46 = 5,178.78/x
3. Step 3: Cross multiply
   14,061.06x = 21,092.46 × 5,178.78
4. Step 4: Simplify right side
   14,061.06x = 109,233,210.00
5. Step 5: Solve for x
   x = 109,233,210.00/14,061.06
6. Step 6: Final answer
   x = 7,768.49