Finding the Fourth Proportional to 142,595.29, 196,831.04 and 88,189.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,595.29 : 196,831.04 = 88,189.10 : x
2. Step 2: Convert to fraction form
   142,595.29/196,831.04 = 88,189.10/x
3. Step 3: Cross multiply
   142,595.29x = 196,831.04 × 88,189.10
4. Step 4: Simplify right side
   142,595.29x = 17,358,350,844.56
5. Step 5: Solve for x
   x = 17,358,350,844.56/142,595.29
6. Step 6: Final answer
   x = 121,731.59