Finding the Fourth Proportional to 260,495.56, 359,404.50 and 145,762.30

Step by Step Solution

1. Step 1: Write the proportion equation
   260,495.56 : 359,404.50 = 145,762.30 : x
2. Step 2: Convert to fraction form
   260,495.56/359,404.50 = 145,762.30/x
3. Step 3: Cross multiply
   260,495.56x = 359,404.50 × 145,762.30
4. Step 4: Simplify right side
   260,495.56x = 52,387,626,550.35
5. Step 5: Solve for x
   x = 52,387,626,550.35/260,495.56
6. Step 6: Final answer
   x = 201,107.56