Finding the Fourth Proportional to 42,076.20, 63,114 and 10,486.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,076.20 : 63,114 = 10,486.04 : x
2. Step 2: Convert to fraction form
   42,076.20/63,114 = 10,486.04/x
3. Step 3: Cross multiply
   42,076.20x = 63,114 × 10,486.04
4. Step 4: Simplify right side
   42,076.20x = 661,815,928.56
5. Step 5: Solve for x
   x = 661,815,928.56/42,076.20
6. Step 6: Final answer
   x = 15,728.99