Finding the Fourth Proportional to 56,971.94, 85,426.59 and 17,518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,971.94 : 85,426.59 = 17,518.10 : x
2. Step 2: Convert to fraction form
   56,971.94/85,426.59 = 17,518.10/x
3. Step 3: Cross multiply
   56,971.94x = 85,426.59 × 17,518.10
4. Step 4: Simplify right side
   56,971.94x = 1,496,511,546.28
5. Step 5: Solve for x
   x = 1,496,511,546.28/56,971.94
6. Step 6: Final answer
   x = 26,267.52