Finding the Fourth Proportional to 55,256.23, 82,900.51 and 17,815.55

Step by Step Solution

1. Step 1: Write the proportion equation
   55,256.23 : 82,900.51 = 17,815.55 : x
2. Step 2: Convert to fraction form
   55,256.23/82,900.51 = 17,815.55/x
3. Step 3: Cross multiply
   55,256.23x = 82,900.51 × 17,815.55
4. Step 4: Simplify right side
   55,256.23x = 1,476,917,822.10
5. Step 5: Solve for x
   x = 1,476,917,822.10/55,256.23
6. Step 6: Final answer
   x = 26,728.53