Finding the Fourth Proportional to 142,685.16, 196,782.66 and 88,914.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,685.16 : 196,782.66 = 88,914.12 : x
2. Step 2: Convert to fraction form
   142,685.16/196,782.66 = 88,914.12/x
3. Step 3: Cross multiply
   142,685.16x = 196,782.66 × 88,914.12
4. Step 4: Simplify right side
   142,685.16x = 17,496,757,045.16
5. Step 5: Solve for x
   x = 17,496,757,045.16/142,685.16
6. Step 6: Final answer
   x = 122,624.93