Finding the Fourth Proportional to 42,419, 58,538.22 and 27,515

Step by Step Solution

1. Step 1: Write the proportion equation
   42,419 : 58,538.22 = 27,515 : x
2. Step 2: Convert to fraction form
   42,419/58,538.22 = 27,515/x
3. Step 3: Cross multiply
   42,419x = 58,538.22 × 27,515
4. Step 4: Simplify right side
   42,419x = 1,610,679,123.30
5. Step 5: Solve for x
   x = 1,610,679,123.30/42,419
6. Step 6: Final answer
   x = 37,970.70