Finding the Fourth Proportional to 354,061.89, 488,599.25 and 192,918.27

Step by Step Solution

1. Step 1: Write the proportion equation
   354,061.89 : 488,599.25 = 192,918.27 : x
2. Step 2: Convert to fraction form
   354,061.89/488,599.25 = 192,918.27/x
3. Step 3: Cross multiply
   354,061.89x = 488,599.25 × 192,918.27
4. Step 4: Simplify right side
   354,061.89x = 94,259,721,068.71
5. Step 5: Solve for x
   x = 94,259,721,068.71/354,061.89
6. Step 6: Final answer
   x = 266,223.85