Finding the Fourth Proportional to 105,047.46, 144,966.42 and 57,301.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,047.46 : 144,966.42 = 57,301.02 : x
2. Step 2: Convert to fraction form
   105,047.46/144,966.42 = 57,301.02/x
3. Step 3: Cross multiply
   105,047.46x = 144,966.42 × 57,301.02
4. Step 4: Simplify right side
   105,047.46x = 8,306,723,731.75
5. Step 5: Solve for x
   x = 8,306,723,731.75/105,047.46
6. Step 6: Final answer
   x = 79,075.91