Finding the Fourth Proportional to 95,517, 142,266.51 and 90,520.92

Step by Step Solution

1. Step 1: Write the proportion equation
   95,517 : 142,266.51 = 90,520.92 : x
2. Step 2: Convert to fraction form
   95,517/142,266.51 = 90,520.92/x
3. Step 3: Cross multiply
   95,517x = 142,266.51 × 90,520.92
4. Step 4: Simplify right side
   95,517x = 12,878,095,370.39
5. Step 5: Solve for x
   x = 12,878,095,370.39/95,517
6. Step 6: Final answer
   x = 134,825.17