Finding the Fourth Proportional to 142,304.17, 196,383.82 and 77,776.99

Step by Step Solution

1. Step 1: Write the proportion equation
   142,304.17 : 196,383.82 = 77,776.99 : x
2. Step 2: Convert to fraction form
   142,304.17/196,383.82 = 77,776.99/x
3. Step 3: Cross multiply
   142,304.17x = 196,383.82 × 77,776.99
4. Step 4: Simplify right side
   142,304.17x = 15,274,142,404.30
5. Step 5: Solve for x
   x = 15,274,142,404.30/142,304.17
6. Step 6: Final answer
   x = 107,334.47