Finding the Fourth Proportional to 22,810.68, 31,476.60 and 13,377.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,810.68 : 31,476.60 = 13,377.42 : x
2. Step 2: Convert to fraction form
   22,810.68/31,476.60 = 13,377.42/x
3. Step 3: Cross multiply
   22,810.68x = 31,476.60 × 13,377.42
4. Step 4: Simplify right side
   22,810.68x = 421,075,698.37
5. Step 5: Solve for x
   x = 421,075,698.37/22,810.68
6. Step 6: Final answer
   x = 18,459.59