Finding the Fourth Proportional to 35,643.02, 49,179.50 and 21,300.70

Step by Step Solution

1. Step 1: Write the proportion equation
   35,643.02 : 49,179.50 = 21,300.70 : x
2. Step 2: Convert to fraction form
   35,643.02/49,179.50 = 21,300.70/x
3. Step 3: Cross multiply
   35,643.02x = 49,179.50 × 21,300.70
4. Step 4: Simplify right side
   35,643.02x = 1,047,557,810.50
5. Step 5: Solve for x
   x = 1,047,557,810.50/35,643.02
6. Step 6: Final answer
   x = 29,390.26