Finding the Fourth Proportional to 21,994.84, 32,985.31 and 7,200.36

Step by Step Solution

1. Step 1: Write the proportion equation
   21,994.84 : 32,985.31 = 7,200.36 : x
2. Step 2: Convert to fraction form
   21,994.84/32,985.31 = 7,200.36/x
3. Step 3: Cross multiply
   21,994.84x = 32,985.31 × 7,200.36
4. Step 4: Simplify right side
   21,994.84x = 237,505,993.43
5. Step 5: Solve for x
   x = 237,505,993.43/21,994.84
6. Step 6: Final answer
   x = 10,798.26