Finding the Fourth Proportional to 15,061.34, 20,784.30 and 8,773.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,061.34 : 20,784.30 = 8,773.31 : x
2. Step 2: Convert to fraction form
   15,061.34/20,784.30 = 8,773.31/x
3. Step 3: Cross multiply
   15,061.34x = 20,784.30 × 8,773.31
4. Step 4: Simplify right side
   15,061.34x = 182,347,126.09
5. Step 5: Solve for x
   x = 182,347,126.09/15,061.34
6. Step 6: Final answer
   x = 12,106.96