Finding the Fourth Proportional to 142,527.74, 196,680.09 and 78,862.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,527.74 : 196,680.09 = 78,862.34 : x
2. Step 2: Convert to fraction form
   142,527.74/196,680.09 = 78,862.34/x
3. Step 3: Cross multiply
   142,527.74x = 196,680.09 × 78,862.34
4. Step 4: Simplify right side
   142,527.74x = 15,510,652,128.81
5. Step 5: Solve for x
   x = 15,510,652,128.81/142,527.74
6. Step 6: Final answer
   x = 108,825.50