Finding the Fourth Proportional to 69,013.92, 103,545.18 and 33,978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   69,013.92 : 103,545.18 = 33,978.18 : x
2. Step 2: Convert to fraction form
   69,013.92/103,545.18 = 33,978.18/x
3. Step 3: Cross multiply
   69,013.92x = 103,545.18 × 33,978.18
4. Step 4: Simplify right side
   69,013.92x = 3,518,276,764.17
5. Step 5: Solve for x
   x = 3,518,276,764.17/69,013.92
6. Step 6: Final answer
   x = 50,979.23