Finding the Fourth Proportional to 112,983.50, 169,503.72 and 79,768.43

Step by Step Solution

1. Step 1: Write the proportion equation
   112,983.50 : 169,503.72 = 79,768.43 : x
2. Step 2: Convert to fraction form
   112,983.50/169,503.72 = 79,768.43/x
3. Step 3: Cross multiply
   112,983.50x = 169,503.72 × 79,768.43
4. Step 4: Simplify right side
   112,983.50x = 13,521,045,623.56
5. Step 5: Solve for x
   x = 13,521,045,623.56/112,983.50
6. Step 6: Final answer
   x = 119,672.75