Finding the Fourth Proportional to 57,362.02, 79,137.47 and 42,290.51

Step by Step Solution

1. Step 1: Write the proportion equation
   57,362.02 : 79,137.47 = 42,290.51 : x
2. Step 2: Convert to fraction form
   57,362.02/79,137.47 = 42,290.51/x
3. Step 3: Cross multiply
   57,362.02x = 79,137.47 × 42,290.51
4. Step 4: Simplify right side
   57,362.02x = 3,346,763,676.45
5. Step 5: Solve for x
   x = 3,346,763,676.45/57,362.02
6. Step 6: Final answer
   x = 58,344.59