Finding the Fourth Proportional to 35,643.11, 49,184.15 and 21,300.09

Step by Step Solution

1. Step 1: Write the proportion equation
   35,643.11 : 49,184.15 = 21,300.09 : x
2. Step 2: Convert to fraction form
   35,643.11/49,184.15 = 21,300.09/x
3. Step 3: Cross multiply
   35,643.11x = 49,184.15 × 21,300.09
4. Step 4: Simplify right side
   35,643.11x = 1,047,626,874.82
5. Step 5: Solve for x
   x = 1,047,626,874.82/35,643.11
6. Step 6: Final answer
   x = 29,392.13