Finding the Fourth Proportional to 215,507.25, 323,312.72 and 67,763.25

Step by Step Solution

1. Step 1: Write the proportion equation
   215,507.25 : 323,312.72 = 67,763.25 : x
2. Step 2: Convert to fraction form
   215,507.25/323,312.72 = 67,763.25/x
3. Step 3: Cross multiply
   215,507.25x = 323,312.72 × 67,763.25
4. Step 4: Simplify right side
   215,507.25x = 21,908,720,334.72
5. Step 5: Solve for x
   x = 21,908,720,334.72/215,507.25
6. Step 6: Final answer
   x = 101,661.18