Finding the Fourth Proportional to 28,018.66, 42,041.34 and 17,485.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,018.66 : 42,041.34 = 17,485.82 : x
2. Step 2: Convert to fraction form
   28,018.66/42,041.34 = 17,485.82/x
3. Step 3: Cross multiply
   28,018.66x = 42,041.34 × 17,485.82
4. Step 4: Simplify right side
   28,018.66x = 735,127,303.80
5. Step 5: Solve for x
   x = 735,127,303.80/28,018.66
6. Step 6: Final answer
   x = 26,237.06