Finding the Fourth Proportional to 113,436.02, 169,856.76 and 79,974.92

Step by Step Solution

1. Step 1: Write the proportion equation
   113,436.02 : 169,856.76 = 79,974.92 : x
2. Step 2: Convert to fraction form
   113,436.02/169,856.76 = 79,974.92/x
3. Step 3: Cross multiply
   113,436.02x = 169,856.76 × 79,974.92
4. Step 4: Simplify right side
   113,436.02x = 13,584,280,792.46
5. Step 5: Solve for x
   x = 13,584,280,792.46/113,436.02
6. Step 6: Final answer
   x = 119,752.80