Finding the Fourth Proportional to 345,561.18, 518,306.72 and 92,808.82

Step by Step Solution

1. Step 1: Write the proportion equation
   345,561.18 : 518,306.72 = 92,808.82 : x
2. Step 2: Convert to fraction form
   345,561.18/518,306.72 = 92,808.82/x
3. Step 3: Cross multiply
   345,561.18x = 518,306.72 × 92,808.82
4. Step 4: Simplify right side
   345,561.18x = 48,103,435,081.27
5. Step 5: Solve for x
   x = 48,103,435,081.27/345,561.18
6. Step 6: Final answer
   x = 139,203.82