Finding the Fourth Proportional to 103,667.91, 155,559.26 and 96,139.15

Step by Step Solution

1. Step 1: Write the proportion equation
   103,667.91 : 155,559.26 = 96,139.15 : x
2. Step 2: Convert to fraction form
   103,667.91/155,559.26 = 96,139.15/x
3. Step 3: Cross multiply
   103,667.91x = 155,559.26 × 96,139.15
4. Step 4: Simplify right side
   103,667.91x = 14,955,335,031.03
5. Step 5: Solve for x
   x = 14,955,335,031.03/103,667.91
6. Step 6: Final answer
   x = 144,261.95