Finding the Fourth Proportional to 42,857.72, 59,136.58 and 26,930.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,857.72 : 59,136.58 = 26,930.88 : x
2. Step 2: Convert to fraction form
   42,857.72/59,136.58 = 26,930.88/x
3. Step 3: Cross multiply
   42,857.72x = 59,136.58 × 26,930.88
4. Step 4: Simplify right side
   42,857.72x = 1,592,600,139.59
5. Step 5: Solve for x
   x = 1,592,600,139.59/42,857.72
6. Step 6: Final answer
   x = 37,160.17