Finding the Fourth Proportional to 52,921.46, 79,380.54 and 17,858.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,921.46 : 79,380.54 = 17,858.18 : x
2. Step 2: Convert to fraction form
   52,921.46/79,380.54 = 17,858.18/x
3. Step 3: Cross multiply
   52,921.46x = 79,380.54 × 17,858.18
4. Step 4: Simplify right side
   52,921.46x = 1,417,591,971.82
5. Step 5: Solve for x
   x = 1,417,591,971.82/52,921.46
6. Step 6: Final answer
   x = 26,786.71