Finding the Fourth Proportional to 142,025.74, 196,066.54 and 88,328.06

Step by Step Solution

1. Step 1: Write the proportion equation
   142,025.74 : 196,066.54 = 88,328.06 : x
2. Step 2: Convert to fraction form
   142,025.74/196,066.54 = 88,328.06/x
3. Step 3: Cross multiply
   142,025.74x = 196,066.54 × 88,328.06
4. Step 4: Simplify right side
   142,025.74x = 17,318,177,109.11
5. Step 5: Solve for x
   x = 17,318,177,109.11/142,025.74
6. Step 6: Final answer
   x = 121,936.89