Finding the Fourth Proportional to 22,483.94, 31,003.52 and 15,318.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,483.94 : 31,003.52 = 15,318.50 : x
2. Step 2: Convert to fraction form
   22,483.94/31,003.52 = 15,318.50/x
3. Step 3: Cross multiply
   22,483.94x = 31,003.52 × 15,318.50
4. Step 4: Simplify right side
   22,483.94x = 474,927,421.12
5. Step 5: Solve for x
   x = 474,927,421.12/22,483.94
6. Step 6: Final answer
   x = 21,122.96