Finding the Fourth Proportional to 15,773.34, 21,771 and 9,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,773.34 : 21,771 = 9,484.50 : x
2. Step 2: Convert to fraction form
   15,773.34/21,771 = 9,484.50/x
3. Step 3: Cross multiply
   15,773.34x = 21,771 × 9,484.50
4. Step 4: Simplify right side
   15,773.34x = 206,487,049.50
5. Step 5: Solve for x
   x = 206,487,049.50/15,773.34
6. Step 6: Final answer
   x = 13,090.89