Finding the Fourth Proportional to 215,746.02, 297,730.98 and 120,258.72

Step by Step Solution

1. Step 1: Write the proportion equation
   215,746.02 : 297,730.98 = 120,258.72 : x
2. Step 2: Convert to fraction form
   215,746.02/297,730.98 = 120,258.72/x
3. Step 3: Cross multiply
   215,746.02x = 297,730.98 × 120,258.72
4. Step 4: Simplify right side
   215,746.02x = 35,804,746,559.15
5. Step 5: Solve for x
   x = 35,804,746,559.15/215,746.02
6. Step 6: Final answer
   x = 165,957.85