Finding the Fourth Proportional to 35,916.72, 49,569.60 and 21,767.76

Step by Step Solution

1. Step 1: Write the proportion equation
   35,916.72 : 49,569.60 = 21,767.76 : x
2. Step 2: Convert to fraction form
   35,916.72/49,569.60 = 21,767.76/x
3. Step 3: Cross multiply
   35,916.72x = 49,569.60 × 21,767.76
4. Step 4: Simplify right side
   35,916.72x = 1,079,019,156.10
5. Step 5: Solve for x
   x = 1,079,019,156.10/35,916.72
6. Step 6: Final answer
   x = 30,042.25