Finding the Fourth Proportional to 215,830.53, 297,846.32 and 120,335.31

Step by Step Solution

1. Step 1: Write the proportion equation
   215,830.53 : 297,846.32 = 120,335.31 : x
2. Step 2: Convert to fraction form
   215,830.53/297,846.32 = 120,335.31/x
3. Step 3: Cross multiply
   215,830.53x = 297,846.32 × 120,335.31
4. Step 4: Simplify right side
   215,830.53x = 35,841,428,647.88
5. Step 5: Solve for x
   x = 35,841,428,647.88/215,830.53
6. Step 6: Final answer
   x = 166,062.83