Finding the Fourth Proportional to 115,608.52, 173,485.68 and 45,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,608.52 : 173,485.68 = 45,478.72 : x
2. Step 2: Convert to fraction form
   115,608.52/173,485.68 = 45,478.72/x
3. Step 3: Cross multiply
   115,608.52x = 173,485.68 × 45,478.72
4. Step 4: Simplify right side
   115,608.52x = 7,889,906,664.73
5. Step 5: Solve for x
   x = 7,889,906,664.73/115,608.52
6. Step 6: Final answer
   x = 68,246.76