Finding the Fourth Proportional to 215,555.31, 323,333.01 and 65,796.39

Step by Step Solution

1. Step 1: Write the proportion equation
   215,555.31 : 323,333.01 = 65,796.39 : x
2. Step 2: Convert to fraction form
   215,555.31/323,333.01 = 65,796.39/x
3. Step 3: Cross multiply
   215,555.31x = 323,333.01 × 65,796.39
4. Step 4: Simplify right side
   215,555.31x = 21,274,144,825.83
5. Step 5: Solve for x
   x = 21,274,144,825.83/215,555.31
6. Step 6: Final answer
   x = 98,694.60