Finding the Fourth Proportional to 106,019.67, 158,910.99 and 45,978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   106,019.67 : 158,910.99 = 45,978.83 : x
2. Step 2: Convert to fraction form
   106,019.67/158,910.99 = 45,978.83/x
3. Step 3: Cross multiply
   106,019.67x = 158,910.99 × 45,978.83
4. Step 4: Simplify right side
   106,019.67x = 7,306,540,599.79
5. Step 5: Solve for x
   x = 7,306,540,599.79/106,019.67
6. Step 6: Final answer
   x = 68,916.84