Finding the Fourth Proportional to 22,365.55, 30,851.62 and 13,407.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,365.55 : 30,851.62 = 13,407.86 : x
2. Step 2: Convert to fraction form
   22,365.55/30,851.62 = 13,407.86/x
3. Step 3: Cross multiply
   22,365.55x = 30,851.62 × 13,407.86
4. Step 4: Simplify right side
   22,365.55x = 413,654,245.34
5. Step 5: Solve for x
   x = 413,654,245.34/22,365.55
6. Step 6: Final answer
   x = 18,495.15