Finding the Fourth Proportional to 42,150.44, 63,224.18 and 10,560.77

Step by Step Solution

1. Step 1: Write the proportion equation
   42,150.44 : 63,224.18 = 10,560.77 : x
2. Step 2: Convert to fraction form
   42,150.44/63,224.18 = 10,560.77/x
3. Step 3: Cross multiply
   42,150.44x = 63,224.18 × 10,560.77
4. Step 4: Simplify right side
   42,150.44x = 667,696,023.42
5. Step 5: Solve for x
   x = 667,696,023.42/42,150.44
6. Step 6: Final answer
   x = 15,840.78