Finding the Fourth Proportional to 142,055.08, 196,040.72 and 77,527.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,055.08 : 196,040.72 = 77,527.84 : x
2. Step 2: Convert to fraction form
   142,055.08/196,040.72 = 77,527.84/x
3. Step 3: Cross multiply
   142,055.08x = 196,040.72 × 77,527.84
4. Step 4: Simplify right side
   142,055.08x = 15,198,613,573.64
5. Step 5: Solve for x
   x = 15,198,613,573.64/142,055.08
6. Step 6: Final answer
   x = 106,990.99