Finding the Fourth Proportional to 217,722.02, 300,446.17 and 120,932.15

Step by Step Solution

1. Step 1: Write the proportion equation
   217,722.02 : 300,446.17 = 120,932.15 : x
2. Step 2: Convert to fraction form
   217,722.02/300,446.17 = 120,932.15/x
3. Step 3: Cross multiply
   217,722.02x = 300,446.17 × 120,932.15
4. Step 4: Simplify right side
   217,722.02x = 36,333,601,443.82
5. Step 5: Solve for x
   x = 36,333,601,443.82/217,722.02
6. Step 6: Final answer
   x = 166,880.69