Finding the Fourth Proportional to 21,783.55, 32,662.15 and 9,773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,783.55 : 32,662.15 = 9,773.50 : x
2. Step 2: Convert to fraction form
   21,783.55/32,662.15 = 9,773.50/x
3. Step 3: Cross multiply
   21,783.55x = 32,662.15 × 9,773.50
4. Step 4: Simplify right side
   21,783.55x = 319,223,474.16
5. Step 5: Solve for x
   x = 319,223,474.16/21,783.55
6. Step 6: Final answer
   x = 14,654.34