Finding the Fourth Proportional to 115,788.96, 173,592.71 and 45,720.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,788.96 : 173,592.71 = 45,720.72 : x
2. Step 2: Convert to fraction form
   115,788.96/173,592.71 = 45,720.72/x
3. Step 3: Cross multiply
   115,788.96x = 173,592.71 × 45,720.72
4. Step 4: Simplify right side
   115,788.96x = 7,936,783,687.95
5. Step 5: Solve for x
   x = 7,936,783,687.95/115,788.96
6. Step 6: Final answer
   x = 68,545.25