Finding the Fourth Proportional to 57,365.90, 79,142.82 and 42,294.38

Step by Step Solution

1. Step 1: Write the proportion equation
   57,365.90 : 79,142.82 = 42,294.38 : x
2. Step 2: Convert to fraction form
   57,365.90/79,142.82 = 42,294.38/x
3. Step 3: Cross multiply
   57,365.90x = 79,142.82 × 42,294.38
4. Step 4: Simplify right side
   57,365.90x = 3,347,296,503.35
5. Step 5: Solve for x
   x = 3,347,296,503.35/57,365.90
6. Step 6: Final answer
   x = 58,349.93