Finding the Fourth Proportional to 105,383.17, 145,432.56 and 60,067.99

Step by Step Solution

1. Step 1: Write the proportion equation
   105,383.17 : 145,432.56 = 60,067.99 : x
2. Step 2: Convert to fraction form
   105,383.17/145,432.56 = 60,067.99/x
3. Step 3: Cross multiply
   105,383.17x = 145,432.56 × 60,067.99
4. Step 4: Simplify right side
   105,383.17x = 8,735,841,559.75
5. Step 5: Solve for x
   x = 8,735,841,559.75/105,383.17
6. Step 6: Final answer
   x = 82,895.98