Finding the Fourth Proportional to 69,722.15, 96,217.31 and 37,891.05

Step by Step Solution

1. Step 1: Write the proportion equation
   69,722.15 : 96,217.31 = 37,891.05 : x
2. Step 2: Convert to fraction form
   69,722.15/96,217.31 = 37,891.05/x
3. Step 3: Cross multiply
   69,722.15x = 96,217.31 × 37,891.05
4. Step 4: Simplify right side
   69,722.15x = 3,645,774,998.80
5. Step 5: Solve for x
   x = 3,645,774,998.80/69,722.15
6. Step 6: Final answer
   x = 52,290.05