Finding the Fourth Proportional to 49,665.69, 74,496.87 and 21,585.77

Step by Step Solution

1. Step 1: Write the proportion equation
   49,665.69 : 74,496.87 = 21,585.77 : x
2. Step 2: Convert to fraction form
   49,665.69/74,496.87 = 21,585.77/x
3. Step 3: Cross multiply
   49,665.69x = 74,496.87 × 21,585.77
4. Step 4: Simplify right side
   49,665.69x = 1,608,071,929.06
5. Step 5: Solve for x
   x = 1,608,071,929.06/49,665.69
6. Step 6: Final answer
   x = 32,377.92