Finding the Fourth Proportional to 20,374.31, 30,562.82 and 5,581.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,374.31 : 30,562.82 = 5,581.98 : x
2. Step 2: Convert to fraction form
   20,374.31/30,562.82 = 5,581.98/x
3. Step 3: Cross multiply
   20,374.31x = 30,562.82 × 5,581.98
4. Step 4: Simplify right side
   20,374.31x = 170,601,022.07
5. Step 5: Solve for x
   x = 170,601,022.07/20,374.31
6. Step 6: Final answer
   x = 8,373.34