Finding the Fourth Proportional to 42,150.83, 63,219.24 and 12,561.73

Step by Step Solution

1. Step 1: Write the proportion equation
   42,150.83 : 63,219.24 = 12,561.73 : x
2. Step 2: Convert to fraction form
   42,150.83/63,219.24 = 12,561.73/x
3. Step 3: Cross multiply
   42,150.83x = 63,219.24 × 12,561.73
4. Step 4: Simplify right side
   42,150.83x = 794,142,865.64
5. Step 5: Solve for x
   x = 794,142,865.64/42,150.83
6. Step 6: Final answer
   x = 18,840.51