Finding the Fourth Proportional to 57,264.98, 79,026.52 and 42,899.36

Step by Step Solution

1. Step 1: Write the proportion equation
   57,264.98 : 79,026.52 = 42,899.36 : x
2. Step 2: Convert to fraction form
   57,264.98/79,026.52 = 42,899.36/x
3. Step 3: Cross multiply
   57,264.98x = 79,026.52 × 42,899.36
4. Step 4: Simplify right side
   57,264.98x = 3,390,187,131.03
5. Step 5: Solve for x
   x = 3,390,187,131.03/57,264.98
6. Step 6: Final answer
   x = 59,201.75