Finding the Fourth Proportional to 105,667.02, 145,825.38 and 57,924

Step by Step Solution

1. Step 1: Write the proportion equation
   105,667.02 : 145,825.38 = 57,924 : x
2. Step 2: Convert to fraction form
   105,667.02/145,825.38 = 57,924/x
3. Step 3: Cross multiply
   105,667.02x = 145,825.38 × 57,924
4. Step 4: Simplify right side
   105,667.02x = 8,446,789,311.12
5. Step 5: Solve for x
   x = 8,446,789,311.12/105,667.02
6. Step 6: Final answer
   x = 79,937.80