Finding the Fourth Proportional to 142,611.42, 196,826.67 and 108,565.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,611.42 : 196,826.67 = 108,565.50 : x
2. Step 2: Convert to fraction form
   142,611.42/196,826.67 = 108,565.50/x
3. Step 3: Cross multiply
   142,611.42x = 196,826.67 × 108,565.50
4. Step 4: Simplify right side
   142,611.42x = 21,368,585,841.89
5. Step 5: Solve for x
   x = 21,368,585,841.89/142,611.42
6. Step 6: Final answer
   x = 149,837.83