Finding the Fourth Proportional to 42,245.50, 58,298.96 and 27,138.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,245.50 : 58,298.96 = 27,138.30 : x
2. Step 2: Convert to fraction form
   42,245.50/58,298.96 = 27,138.30/x
3. Step 3: Cross multiply
   42,245.50x = 58,298.96 × 27,138.30
4. Step 4: Simplify right side
   42,245.50x = 1,582,134,666.17
5. Step 5: Solve for x
   x = 1,582,134,666.17/42,245.50
6. Step 6: Final answer
   x = 37,450.96