Finding the Fourth Proportional to 39,426.82, 54,409.23 and 21,522.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,426.82 : 54,409.23 = 21,522.25 : x
2. Step 2: Convert to fraction form
   39,426.82/54,409.23 = 21,522.25/x
3. Step 3: Cross multiply
   39,426.82x = 54,409.23 × 21,522.25
4. Step 4: Simplify right side
   39,426.82x = 1,171,009,050.37
5. Step 5: Solve for x
   x = 1,171,009,050.37/39,426.82
6. Step 6: Final answer
   x = 29,700.82