Finding the Fourth Proportional to 42,535.05, 58,624.20 and 31,180.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,535.05 : 58,624.20 = 31,180.43 : x
2. Step 2: Convert to fraction form
   42,535.05/58,624.20 = 31,180.43/x
3. Step 3: Cross multiply
   42,535.05x = 58,624.20 × 31,180.43
4. Step 4: Simplify right side
   42,535.05x = 1,827,927,471.29
5. Step 5: Solve for x
   x = 1,827,927,471.29/42,535.05
6. Step 6: Final answer
   x = 42,974.62