Finding the Fourth Proportional to 57,486.09, 79,308.77 and 42,414.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,486.09 : 79,308.77 = 42,414.69 : x
2. Step 2: Convert to fraction form
   57,486.09/79,308.77 = 42,414.69/x
3. Step 3: Cross multiply
   57,486.09x = 79,308.77 × 42,414.69
4. Step 4: Simplify right side
   57,486.09x = 3,363,856,681.76
5. Step 5: Solve for x
   x = 3,363,856,681.76/57,486.09
6. Step 6: Final answer
   x = 58,516.01