Finding the Fourth Proportional to 260,662.89, 359,745.10 and 158,748.09

Step by Step Solution

1. Step 1: Write the proportion equation
   260,662.89 : 359,745.10 = 158,748.09 : x
2. Step 2: Convert to fraction form
   260,662.89/359,745.10 = 158,748.09/x
3. Step 3: Cross multiply
   260,662.89x = 359,745.10 × 158,748.09
4. Step 4: Simplify right side
   260,662.89x = 57,108,845,765.94
5. Step 5: Solve for x
   x = 57,108,845,765.94/260,662.89
6. Step 6: Final answer
   x = 219,090.81