Finding the Fourth Proportional to 35,486.88, 53,203.59 and 21,443.91

Step by Step Solution

1. Step 1: Write the proportion equation
   35,486.88 : 53,203.59 = 21,443.91 : x
2. Step 2: Convert to fraction form
   35,486.88/53,203.59 = 21,443.91/x
3. Step 3: Cross multiply
   35,486.88x = 53,203.59 × 21,443.91
4. Step 4: Simplify right side
   35,486.88x = 1,140,892,995.64
5. Step 5: Solve for x
   x = 1,140,892,995.64/35,486.88
6. Step 6: Final answer
   x = 32,149.71