Finding the Fourth Proportional to 127,632, 191,113.56 and 89,988.33

Step by Step Solution

1. Step 1: Write the proportion equation
   127,632 : 191,113.56 = 89,988.33 : x
2. Step 2: Convert to fraction form
   127,632/191,113.56 = 89,988.33/x
3. Step 3: Cross multiply
   127,632x = 191,113.56 × 89,988.33
4. Step 4: Simplify right side
   127,632x = 17,197,990,104.75
5. Step 5: Solve for x
   x = 17,197,990,104.75/127,632
6. Step 6: Final answer
   x = 134,746.69