Finding the Fourth Proportional to 326,061.08, 489,092.34 and 89,407.16

Step by Step Solution

1. Step 1: Write the proportion equation
   326,061.08 : 489,092.34 = 89,407.16 : x
2. Step 2: Convert to fraction form
   326,061.08/489,092.34 = 89,407.16/x
3. Step 3: Cross multiply
   326,061.08x = 489,092.34 × 89,407.16
4. Step 4: Simplify right side
   326,061.08x = 43,728,357,097.15
5. Step 5: Solve for x
   x = 43,728,357,097.15/326,061.08
6. Step 6: Final answer
   x = 134,110.94