Finding the Fourth Proportional to 23,796.16, 32,840.70 and 13,186.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,796.16 : 32,840.70 = 13,186.78 : x
2. Step 2: Convert to fraction form
   23,796.16/32,840.70 = 13,186.78/x
3. Step 3: Cross multiply
   23,796.16x = 32,840.70 × 13,186.78
4. Step 4: Simplify right side
   23,796.16x = 433,063,085.95
5. Step 5: Solve for x
   x = 433,063,085.95/23,796.16
6. Step 6: Final answer
   x = 18,198.86