Finding the Fourth Proportional to 25,093.33, 34,541.86 and 21,688.78

Step by Step Solution

1. Step 1: Write the proportion equation
   25,093.33 : 34,541.86 = 21,688.78 : x
2. Step 2: Convert to fraction form
   25,093.33/34,541.86 = 21,688.78/x
3. Step 3: Cross multiply
   25,093.33x = 34,541.86 × 21,688.78
4. Step 4: Simplify right side
   25,093.33x = 749,170,521.18
5. Step 5: Solve for x
   x = 749,170,521.18/25,093.33
6. Step 6: Final answer
   x = 29,855.37