Finding the Fourth Proportional to 142,406.71, 196,606.53 and 88,764.38

Step by Step Solution

1. Step 1: Write the proportion equation
   142,406.71 : 196,606.53 = 88,764.38 : x
2. Step 2: Convert to fraction form
   142,406.71/196,606.53 = 88,764.38/x
3. Step 3: Cross multiply
   142,406.71x = 196,606.53 × 88,764.38
4. Step 4: Simplify right side
   142,406.71x = 17,451,656,739.40
5. Step 5: Solve for x
   x = 17,451,656,739.40/142,406.71
6. Step 6: Final answer
   x = 122,547.99