Finding the Fourth Proportional to 112,504.73, 168,776.53 and 45,981.05

Step by Step Solution

1. Step 1: Write the proportion equation
   112,504.73 : 168,776.53 = 45,981.05 : x
2. Step 2: Convert to fraction form
   112,504.73/168,776.53 = 45,981.05/x
3. Step 3: Cross multiply
   112,504.73x = 168,776.53 × 45,981.05
4. Step 4: Simplify right side
   112,504.73x = 7,760,521,105.92
5. Step 5: Solve for x
   x = 7,760,521,105.92/112,504.73
6. Step 6: Final answer
   x = 68,979.51