Finding the Fourth Proportional to 39,426.96, 54,408.74 and 21,522.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,426.96 : 54,408.74 = 21,522.72 : x
2. Step 2: Convert to fraction form
   39,426.96/54,408.74 = 21,522.72/x
3. Step 3: Cross multiply
   39,426.96x = 54,408.74 × 21,522.72
4. Step 4: Simplify right side
   39,426.96x = 1,171,024,076.57
5. Step 5: Solve for x
   x = 1,171,024,076.57/39,426.96
6. Step 6: Final answer
   x = 29,701.10