Finding the Fourth Proportional to 216,061.74, 298,180.17 and 120,587.04

Step by Step Solution

1. Step 1: Write the proportion equation
   216,061.74 : 298,180.17 = 120,587.04 : x
2. Step 2: Convert to fraction form
   216,061.74/298,180.17 = 120,587.04/x
3. Step 3: Cross multiply
   216,061.74x = 298,180.17 × 120,587.04
4. Step 4: Simplify right side
   216,061.74x = 35,956,664,087.00
5. Step 5: Solve for x
   x = 35,956,664,087.00/216,061.74
6. Step 6: Final answer
   x = 166,418.47