Finding the Fourth Proportional to 96,300.90, 145,173.06 and 89,878.41

Step by Step Solution

1. Step 1: Write the proportion equation
   96,300.90 : 145,173.06 = 89,878.41 : x
2. Step 2: Convert to fraction form
   96,300.90/145,173.06 = 89,878.41/x
3. Step 3: Cross multiply
   96,300.90x = 145,173.06 × 89,878.41
4. Step 4: Simplify right side
   96,300.90x = 13,047,923,807.63
5. Step 5: Solve for x
   x = 13,047,923,807.63/96,300.90
6. Step 6: Final answer
   x = 135,491.19