Finding the Fourth Proportional to 42,414.81, 58,499.99 and 28,813.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,414.81 : 58,499.99 = 28,813.34 : x
2. Step 2: Convert to fraction form
   42,414.81/58,499.99 = 28,813.34/x
3. Step 3: Cross multiply
   42,414.81x = 58,499.99 × 28,813.34
4. Step 4: Simplify right side
   42,414.81x = 1,685,580,212.10
5. Step 5: Solve for x
   x = 1,685,580,212.10/42,414.81
6. Step 6: Final answer
   x = 39,740.37