Finding the Fourth Proportional to 36,123.91, 49,851.35 and 21,784.48

Step by Step Solution

1. Step 1: Write the proportion equation
   36,123.91 : 49,851.35 = 21,784.48 : x
2. Step 2: Convert to fraction form
   36,123.91/49,851.35 = 21,784.48/x
3. Step 3: Cross multiply
   36,123.91x = 49,851.35 × 21,784.48
4. Step 4: Simplify right side
   36,123.91x = 1,085,985,585.19
5. Step 5: Solve for x
   x = 1,085,985,585.19/36,123.91
6. Step 6: Final answer
   x = 30,062.79