Finding the Fourth Proportional to 250,315.98, 345,767.31 and 186,543.06

Step by Step Solution

1. Step 1: Write the proportion equation
   250,315.98 : 345,767.31 = 186,543.06 : x
2. Step 2: Convert to fraction form
   250,315.98/345,767.31 = 186,543.06/x
3. Step 3: Cross multiply
   250,315.98x = 345,767.31 × 186,543.06
4. Step 4: Simplify right side
   250,315.98x = 64,500,492,055.37
5. Step 5: Solve for x
   x = 64,500,492,055.37/250,315.98
6. Step 6: Final answer
   x = 257,676.29