Finding the Fourth Proportional to 215,329.88, 322,997.69 and 67,585.88

Step by Step Solution

1. Step 1: Write the proportion equation
   215,329.88 : 322,997.69 = 67,585.88 : x
2. Step 2: Convert to fraction form
   215,329.88/322,997.69 = 67,585.88/x
3. Step 3: Cross multiply
   215,329.88x = 322,997.69 × 67,585.88
4. Step 4: Simplify right side
   215,329.88x = 21,830,081,670.59
5. Step 5: Solve for x
   x = 21,830,081,670.59/215,329.88
6. Step 6: Final answer
   x = 101,379.72