Finding the Fourth Proportional to 127,002.71, 190,535.75 and 89,635.78

Step by Step Solution

1. Step 1: Write the proportion equation
   127,002.71 : 190,535.75 = 89,635.78 : x
2. Step 2: Convert to fraction form
   127,002.71/190,535.75 = 89,635.78/x
3. Step 3: Cross multiply
   127,002.71x = 190,535.75 × 89,635.78
4. Step 4: Simplify right side
   127,002.71x = 17,078,820,569.14
5. Step 5: Solve for x
   x = 17,078,820,569.14/127,002.71
6. Step 6: Final answer
   x = 134,476.03