Finding the Fourth Proportional to 326,686.42, 490,098.89 and 116,323.75

Step by Step Solution

1. Step 1: Write the proportion equation
   326,686.42 : 490,098.89 = 116,323.75 : x
2. Step 2: Convert to fraction form
   326,686.42/490,098.89 = 116,323.75/x
3. Step 3: Cross multiply
   326,686.42x = 490,098.89 × 116,323.75
4. Step 4: Simplify right side
   326,686.42x = 57,010,140,755.64
5. Step 5: Solve for x
   x = 57,010,140,755.64/326,686.42
6. Step 6: Final answer
   x = 174,510.29