Finding the Fourth Proportional to 96,047.45, 144,386.69 and 89,111.28

Step by Step Solution

1. Step 1: Write the proportion equation
   96,047.45 : 144,386.69 = 89,111.28 : x
2. Step 2: Convert to fraction form
   96,047.45/144,386.69 = 89,111.28/x
3. Step 3: Cross multiply
   96,047.45x = 144,386.69 × 89,111.28
4. Step 4: Simplify right side
   96,047.45x = 12,866,482,315.31
5. Step 5: Solve for x
   x = 12,866,482,315.31/96,047.45
6. Step 6: Final answer
   x = 133,959.65