Finding the Fourth Proportional to 215,061.27, 322,579.54 and 102,818.96

Step by Step Solution

1. Step 1: Write the proportion equation
   215,061.27 : 322,579.54 = 102,818.96 : x
2. Step 2: Convert to fraction form
   215,061.27/322,579.54 = 102,818.96/x
3. Step 3: Cross multiply
   215,061.27x = 322,579.54 × 102,818.96
4. Step 4: Simplify right side
   215,061.27x = 33,167,292,820.08
5. Step 5: Solve for x
   x = 33,167,292,820.08/215,061.27
6. Step 6: Final answer
   x = 154,222.53