Finding the Fourth Proportional to 345,626.60, 518,390.69 and 108,938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   345,626.60 : 518,390.69 = 108,938.52 : x
2. Step 2: Convert to fraction form
   345,626.60/518,390.69 = 108,938.52/x
3. Step 3: Cross multiply
   345,626.60x = 518,390.69 × 108,938.52
4. Step 4: Simplify right side
   345,626.60x = 56,472,714,005.69
5. Step 5: Solve for x
   x = 56,472,714,005.69/345,626.60
6. Step 6: Final answer
   x = 163,392.27