Finding the Fourth Proportional to 57,666.86, 79,462.14 and 42,535.54

Step by Step Solution

1. Step 1: Write the proportion equation
   57,666.86 : 79,462.14 = 42,535.54 : x
2. Step 2: Convert to fraction form
   57,666.86/79,462.14 = 42,535.54/x
3. Step 3: Cross multiply
   57,666.86x = 79,462.14 × 42,535.54
4. Step 4: Simplify right side
   57,666.86x = 3,379,965,034.46
5. Step 5: Solve for x
   x = 3,379,965,034.46/57,666.86
6. Step 6: Final answer
   x = 58,611.91