Finding the Fourth Proportional to 260,680.12, 359,654.96 and 145,941.89

Step by Step Solution

1. Step 1: Write the proportion equation
   260,680.12 : 359,654.96 = 145,941.89 : x
2. Step 2: Convert to fraction form
   260,680.12/359,654.96 = 145,941.89/x
3. Step 3: Cross multiply
   260,680.12x = 359,654.96 × 145,941.89
4. Step 4: Simplify right side
   260,680.12x = 52,488,724,610.27
5. Step 5: Solve for x
   x = 52,488,724,610.27/260,680.12
6. Step 6: Final answer
   x = 201,353.00