Finding the Fourth Proportional to 22,620.01, 31,214.86 and 13,665.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,620.01 : 31,214.86 = 13,665.94 : x
2. Step 2: Convert to fraction form
   22,620.01/31,214.86 = 13,665.94/x
3. Step 3: Cross multiply
   22,620.01x = 31,214.86 × 13,665.94
4. Step 4: Simplify right side
   22,620.01x = 426,580,403.87
5. Step 5: Solve for x
   x = 426,580,403.87/22,620.01
6. Step 6: Final answer
   x = 18,858.54