Finding the Fourth Proportional to 20,521.34, 30,787.49 and 7,373.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,521.34 : 30,787.49 = 7,373.82 : x
2. Step 2: Convert to fraction form
   20,521.34/30,787.49 = 7,373.82/x
3. Step 3: Cross multiply
   20,521.34x = 30,787.49 × 7,373.82
4. Step 4: Simplify right side
   20,521.34x = 227,021,409.51
5. Step 5: Solve for x
   x = 227,021,409.51/20,521.34
6. Step 6: Final answer
   x = 11,062.70