Finding the Fourth Proportional to 49,618.01, 74,429.45 and 20,032.15

Step by Step Solution

1. Step 1: Write the proportion equation
   49,618.01 : 74,429.45 = 20,032.15 : x
2. Step 2: Convert to fraction form
   49,618.01/74,429.45 = 20,032.15/x
3. Step 3: Cross multiply
   49,618.01x = 74,429.45 × 20,032.15
4. Step 4: Simplify right side
   49,618.01x = 1,490,981,906.82
5. Step 5: Solve for x
   x = 1,490,981,906.82/49,618.01
6. Step 6: Final answer
   x = 30,049.21