Finding the Fourth Proportional to 215,093.98, 322,350.34 and 81,901.58

Step by Step Solution

1. Step 1: Write the proportion equation
   215,093.98 : 322,350.34 = 81,901.58 : x
2. Step 2: Convert to fraction form
   215,093.98/322,350.34 = 81,901.58/x
3. Step 3: Cross multiply
   215,093.98x = 322,350.34 × 81,901.58
4. Step 4: Simplify right side
   215,093.98x = 26,401,003,379.88
5. Step 5: Solve for x
   x = 26,401,003,379.88/215,093.98
6. Step 6: Final answer
   x = 122,741.71