Finding the Fourth Proportional to 105,618.30, 158,374.74 and 34,531.68

Step by Step Solution

1. Step 1: Write the proportion equation
   105,618.30 : 158,374.74 = 34,531.68 : x
2. Step 2: Convert to fraction form
   105,618.30/158,374.74 = 34,531.68/x
3. Step 3: Cross multiply
   105,618.30x = 158,374.74 × 34,531.68
4. Step 4: Simplify right side
   105,618.30x = 5,468,945,841.76
5. Step 5: Solve for x
   x = 5,468,945,841.76/105,618.30
6. Step 6: Final answer
   x = 51,780.29