Finding the Fourth Proportional to 354,081.71, 531,279.56 and 185,561.98

Step by Step Solution

1. Step 1: Write the proportion equation
   354,081.71 : 531,279.56 = 185,561.98 : x
2. Step 2: Convert to fraction form
   354,081.71/531,279.56 = 185,561.98/x
3. Step 3: Cross multiply
   354,081.71x = 531,279.56 × 185,561.98
4. Step 4: Simplify right side
   354,081.71x = 98,585,287,087.13
5. Step 5: Solve for x
   x = 98,585,287,087.13/354,081.71
6. Step 6: Final answer
   x = 278,425.25