Finding the Fourth Proportional to 35,643.86, 49,185.19 and 21,300.84

Step by Step Solution

1. Step 1: Write the proportion equation
   35,643.86 : 49,185.19 = 21,300.84 : x
2. Step 2: Convert to fraction form
   35,643.86/49,185.19 = 21,300.84/x
3. Step 3: Cross multiply
   35,643.86x = 49,185.19 × 21,300.84
4. Step 4: Simplify right side
   35,643.86x = 1,047,685,809.31
5. Step 5: Solve for x
   x = 1,047,685,809.31/35,643.86
6. Step 6: Final answer
   x = 29,393.17