Finding the Fourth Proportional to 166,661.12, 249,993.30 and 42,002.12

Step by Step Solution

1. Step 1: Write the proportion equation
   166,661.12 : 249,993.30 = 42,002.12 : x
2. Step 2: Convert to fraction form
   166,661.12/249,993.30 = 42,002.12/x
3. Step 3: Cross multiply
   166,661.12x = 249,993.30 × 42,002.12
4. Step 4: Simplify right side
   166,661.12x = 10,500,248,585.80
5. Step 5: Solve for x
   x = 10,500,248,585.80/166,661.12
6. Step 6: Final answer
   x = 63,003.59