Finding the Fourth Proportional to 35,820.72, 49,431.60 and 19,904.40

Step by Step Solution

1. Step 1: Write the proportion equation
   35,820.72 : 49,431.60 = 19,904.40 : x
2. Step 2: Convert to fraction form
   35,820.72/49,431.60 = 19,904.40/x
3. Step 3: Cross multiply
   35,820.72x = 49,431.60 × 19,904.40
4. Step 4: Simplify right side
   35,820.72x = 983,906,339.04
5. Step 5: Solve for x
   x = 983,906,339.04/35,820.72
6. Step 6: Final answer
   x = 27,467.52