Finding the Fourth Proportional to 115,113.83, 172,695.45 and 65,217.83

Step by Step Solution

1. Step 1: Write the proportion equation
   115,113.83 : 172,695.45 = 65,217.83 : x
2. Step 2: Convert to fraction form
   115,113.83/172,695.45 = 65,217.83/x
3. Step 3: Cross multiply
   115,113.83x = 172,695.45 × 65,217.83
4. Step 4: Simplify right side
   115,113.83x = 11,262,822,499.87
5. Step 5: Solve for x
   x = 11,262,822,499.87/115,113.83
6. Step 6: Final answer
   x = 97,840.74