Finding the Fourth Proportional to 31,364.52, 43,302.56 and 21,801.39

Step by Step Solution

1. Step 1: Write the proportion equation
   31,364.52 : 43,302.56 = 21,801.39 : x
2. Step 2: Convert to fraction form
   31,364.52/43,302.56 = 21,801.39/x
3. Step 3: Cross multiply
   31,364.52x = 43,302.56 × 21,801.39
4. Step 4: Simplify right side
   31,364.52x = 944,055,998.56
5. Step 5: Solve for x
   x = 944,055,998.56/31,364.52
6. Step 6: Final answer
   x = 30,099.49