Finding the Fourth Proportional to 215,298.47, 323,016.86 and 65,567.75

Step by Step Solution

1. Step 1: Write the proportion equation
   215,298.47 : 323,016.86 = 65,567.75 : x
2. Step 2: Convert to fraction form
   215,298.47/323,016.86 = 65,567.75/x
3. Step 3: Cross multiply
   215,298.47x = 323,016.86 × 65,567.75
4. Step 4: Simplify right side
   215,298.47x = 21,179,487,271.10
5. Step 5: Solve for x
   x = 21,179,487,271.10/215,298.47
6. Step 6: Final answer
   x = 98,372.68