Finding the Fourth Proportional to 42,857.68, 59,136.57 and 26,930.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,857.68 : 59,136.57 = 26,930.86 : x
2. Step 2: Convert to fraction form
   42,857.68/59,136.57 = 26,930.86/x
3. Step 3: Cross multiply
   42,857.68x = 59,136.57 × 26,930.86
4. Step 4: Simplify right side
   42,857.68x = 1,592,598,687.55
5. Step 5: Solve for x
   x = 1,592,598,687.55/42,857.68
6. Step 6: Final answer
   x = 37,160.17