Finding the Fourth Proportional to 35,488.89, 48,983.22 and 21,339

Step by Step Solution

1. Step 1: Write the proportion equation
   35,488.89 : 48,983.22 = 21,339 : x
2. Step 2: Convert to fraction form
   35,488.89/48,983.22 = 21,339/x
3. Step 3: Cross multiply
   35,488.89x = 48,983.22 × 21,339
4. Step 4: Simplify right side
   35,488.89x = 1,045,252,931.58
5. Step 5: Solve for x
   x = 1,045,252,931.58/35,488.89
6. Step 6: Final answer
   x = 29,452.96