Finding the Fourth Proportional to 142,577.02, 196,753.35 and 78,911.02

Step by Step Solution

1. Step 1: Write the proportion equation
   142,577.02 : 196,753.35 = 78,911.02 : x
2. Step 2: Convert to fraction form
   142,577.02/196,753.35 = 78,911.02/x
3. Step 3: Cross multiply
   142,577.02x = 196,753.35 × 78,911.02
4. Step 4: Simplify right side
   142,577.02x = 15,526,007,536.92
5. Step 5: Solve for x
   x = 15,526,007,536.92/142,577.02
6. Step 6: Final answer
   x = 108,895.58