Finding the Fourth Proportional to 112,909.56, 169,392.81 and 79,694.49

Step by Step Solution

1. Step 1: Write the proportion equation
   112,909.56 : 169,392.81 = 79,694.49 : x
2. Step 2: Convert to fraction form
   112,909.56/169,392.81 = 79,694.49/x
3. Step 3: Cross multiply
   112,909.56x = 169,392.81 × 79,694.49
4. Step 4: Simplify right side
   112,909.56x = 13,499,673,602.62
5. Step 5: Solve for x
   x = 13,499,673,602.62/112,909.56
6. Step 6: Final answer
   x = 119,561.83