Finding the Fourth Proportional to 81,734.15, 122,648.61 and 34,345.51

Step by Step Solution

1. Step 1: Write the proportion equation
   81,734.15 : 122,648.61 = 34,345.51 : x
2. Step 2: Convert to fraction form
   81,734.15/122,648.61 = 34,345.51/x
3. Step 3: Cross multiply
   81,734.15x = 122,648.61 × 34,345.51
4. Step 4: Simplify right side
   81,734.15x = 4,212,428,883.42
5. Step 5: Solve for x
   x = 4,212,428,883.42/81,734.15
6. Step 6: Final answer
   x = 51,538.17