Finding the Fourth Proportional to 22,316.86, 30,787.54 and 13,816.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,316.86 : 30,787.54 = 13,816.72 : x
2. Step 2: Convert to fraction form
   22,316.86/30,787.54 = 13,816.72/x
3. Step 3: Cross multiply
   22,316.86x = 30,787.54 × 13,816.72
4. Step 4: Simplify right side
   22,316.86x = 425,382,819.67
5. Step 5: Solve for x
   x = 425,382,819.67/22,316.86
6. Step 6: Final answer
   x = 19,061.05