Finding the Fourth Proportional to 115,100.80, 172,662.72 and 41,211.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,100.80 : 172,662.72 = 41,211.52 : x
2. Step 2: Convert to fraction form
   115,100.80/172,662.72 = 41,211.52/x
3. Step 3: Cross multiply
   115,100.80x = 172,662.72 × 41,211.52
4. Step 4: Simplify right side
   115,100.80x = 7,115,693,138.53
5. Step 5: Solve for x
   x = 7,115,693,138.53/115,100.80
6. Step 6: Final answer
   x = 61,821.40