Finding the Fourth Proportional to 345,755.52, 518,633.37 and 109,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   345,755.52 : 518,633.37 = 109,116.72 : x
2. Step 2: Convert to fraction form
   345,755.52/518,633.37 = 109,116.72/x
3. Step 3: Cross multiply
   345,755.52x = 518,633.37 × 109,116.72
4. Step 4: Simplify right side
   345,755.52x = 56,591,572,216.95
5. Step 5: Solve for x
   x = 56,591,572,216.95/345,755.52
6. Step 6: Final answer
   x = 163,675.11