Finding the Fourth Proportional to 260,238.22, 359,131.56 and 152,809.54

Step by Step Solution

1. Step 1: Write the proportion equation
   260,238.22 : 359,131.56 = 152,809.54 : x
2. Step 2: Convert to fraction form
   260,238.22/359,131.56 = 152,809.54/x
3. Step 3: Cross multiply
   260,238.22x = 359,131.56 × 152,809.54
4. Step 4: Simplify right side
   260,238.22x = 54,878,728,483.08
5. Step 5: Solve for x
   x = 54,878,728,483.08/260,238.22
6. Step 6: Final answer
   x = 210,878.82