Finding the Fourth Proportional to 42,422.20, 58,516.46 and 27,309.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,422.20 : 58,516.46 = 27,309.88 : x
2. Step 2: Convert to fraction form
   42,422.20/58,516.46 = 27,309.88/x
3. Step 3: Cross multiply
   42,422.20x = 58,516.46 × 27,309.88
4. Step 4: Simplify right side
   42,422.20x = 1,598,077,500.62
5. Step 5: Solve for x
   x = 1,598,077,500.62/42,422.20
6. Step 6: Final answer
   x = 37,670.78