Finding the Fourth Proportional to 99,756.59, 149,635.06 and 79,892.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,756.59 : 149,635.06 = 79,892.42 : x
2. Step 2: Convert to fraction form
   99,756.59/149,635.06 = 79,892.42/x
3. Step 3: Cross multiply
   99,756.59x = 149,635.06 × 79,892.42
4. Step 4: Simplify right side
   99,756.59x = 11,954,706,660.78
5. Step 5: Solve for x
   x = 11,954,706,660.78/99,756.59
6. Step 6: Final answer
   x = 119,838.77