Finding the Fourth Proportional to 23,209.76, 34,788.71 and 21,341.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,209.76 : 34,788.71 = 21,341.49 : x
2. Step 2: Convert to fraction form
   23,209.76/34,788.71 = 21,341.49/x
3. Step 3: Cross multiply
   23,209.76x = 34,788.71 × 21,341.49
4. Step 4: Simplify right side
   23,209.76x = 742,442,799.87
5. Step 5: Solve for x
   x = 742,442,799.87/23,209.76
6. Step 6: Final answer
   x = 31,988.39