Finding the Fourth Proportional to 142,686.66, 196,784.73 and 88,915.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,686.66 : 196,784.73 = 88,915.62 : x
2. Step 2: Convert to fraction form
   142,686.66/196,784.73 = 88,915.62/x
3. Step 3: Cross multiply
   142,686.66x = 196,784.73 × 88,915.62
4. Step 4: Simplify right side
   142,686.66x = 17,497,236,274.48
5. Step 5: Solve for x
   x = 17,497,236,274.48/142,686.66
6. Step 6: Final answer
   x = 122,626.99