Finding the Fourth Proportional to 22,374.55, 30,877.77 and 12,816.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,374.55 : 30,877.77 = 12,816.01 : x
2. Step 2: Convert to fraction form
   22,374.55/30,877.77 = 12,816.01/x
3. Step 3: Cross multiply
   22,374.55x = 30,877.77 × 12,816.01
4. Step 4: Simplify right side
   22,374.55x = 395,729,809.10
5. Step 5: Solve for x
   x = 395,729,809.10/22,374.55
6. Step 6: Final answer
   x = 17,686.60