Finding the Fourth Proportional to 265,061.70, 397,590.71 and 107,287.88

Step by Step Solution

1. Step 1: Write the proportion equation
   265,061.70 : 397,590.71 = 107,287.88 : x
2. Step 2: Convert to fraction form
   265,061.70/397,590.71 = 107,287.88/x
3. Step 3: Cross multiply
   265,061.70x = 397,590.71 × 107,287.88
4. Step 4: Simplify right side
   265,061.70x = 42,656,661,859.20
5. Step 5: Solve for x
   x = 42,656,661,859.20/265,061.70
6. Step 6: Final answer
   x = 160,931.07