Finding the Fourth Proportional to 22,479.94, 30,998.01 and 15,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,479.94 : 30,998.01 = 15,314.50 : x
2. Step 2: Convert to fraction form
   22,479.94/30,998.01 = 15,314.50/x
3. Step 3: Cross multiply
   22,479.94x = 30,998.01 × 15,314.50
4. Step 4: Simplify right side
   22,479.94x = 474,719,024.15
5. Step 5: Solve for x
   x = 474,719,024.15/22,479.94
6. Step 6: Final answer
   x = 21,117.45