Finding the Fourth Proportional to 35,155.42, 48,514.76 and 21,723.60

Step by Step Solution

1. Step 1: Write the proportion equation
   35,155.42 : 48,514.76 = 21,723.60 : x
2. Step 2: Convert to fraction form
   35,155.42/48,514.76 = 21,723.60/x
3. Step 3: Cross multiply
   35,155.42x = 48,514.76 × 21,723.60
4. Step 4: Simplify right side
   35,155.42x = 1,053,915,240.34
5. Step 5: Solve for x
   x = 1,053,915,240.34/35,155.42
6. Step 6: Final answer
   x = 29,978.74