Finding the Fourth Proportional to 215,467.84, 323,250.72 and 65,721.52

Step by Step Solution

1. Step 1: Write the proportion equation
   215,467.84 : 323,250.72 = 65,721.52 : x
2. Step 2: Convert to fraction form
   215,467.84/323,250.72 = 65,721.52/x
3. Step 3: Cross multiply
   215,467.84x = 323,250.72 × 65,721.52
4. Step 4: Simplify right side
   215,467.84x = 21,244,528,659.49
5. Step 5: Solve for x
   x = 21,244,528,659.49/215,467.84
6. Step 6: Final answer
   x = 98,597.21