Finding the Fourth Proportional to 105,719.88, 158,604.12 and 61,383.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,719.88 : 158,604.12 = 61,383.72 : x
2. Step 2: Convert to fraction form
   105,719.88/158,604.12 = 61,383.72/x
3. Step 3: Cross multiply
   105,719.88x = 158,604.12 × 61,383.72
4. Step 4: Simplify right side
   105,719.88x = 9,735,710,892.93
5. Step 5: Solve for x
   x = 9,735,710,892.93/105,719.88
6. Step 6: Final answer
   x = 92,089.69