Finding the Fourth Proportional to 215,091.27, 322,615.89 and 65,332.80

Step by Step Solution

1. Step 1: Write the proportion equation
   215,091.27 : 322,615.89 = 65,332.80 : x
2. Step 2: Convert to fraction form
   215,091.27/322,615.89 = 65,332.80/x
3. Step 3: Cross multiply
   215,091.27x = 322,615.89 × 65,332.80
4. Step 4: Simplify right side
   215,091.27x = 21,077,399,418.19
5. Step 5: Solve for x
   x = 21,077,399,418.19/215,091.27
6. Step 6: Final answer
   x = 97,992.82