Finding the Fourth Proportional to 71,665.20, 107,546.40 and 46,644.30

Step by Step Solution

1. Step 1: Write the proportion equation
   71,665.20 : 107,546.40 = 46,644.30 : x
2. Step 2: Convert to fraction form
   71,665.20/107,546.40 = 46,644.30/x
3. Step 3: Cross multiply
   71,665.20x = 107,546.40 × 46,644.30
4. Step 4: Simplify right side
   71,665.20x = 5,016,426,545.52
5. Step 5: Solve for x
   x = 5,016,426,545.52/71,665.20
6. Step 6: Final answer
   x = 69,998.08