Finding the Fourth Proportional to 42,549.10, 63,832.86 and 12,966.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,549.10 : 63,832.86 = 12,966.16 : x
2. Step 2: Convert to fraction form
   42,549.10/63,832.86 = 12,966.16/x
3. Step 3: Cross multiply
   42,549.10x = 63,832.86 × 12,966.16
4. Step 4: Simplify right side
   42,549.10x = 827,667,076.02
5. Step 5: Solve for x
   x = 827,667,076.02/42,549.10
6. Step 6: Final answer
   x = 19,452.05