Finding the Fourth Proportional to 42,321.69, 58,382.78 and 27,015.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,321.69 : 58,382.78 = 27,015.53 : x
2. Step 2: Convert to fraction form
   42,321.69/58,382.78 = 27,015.53/x
3. Step 3: Cross multiply
   42,321.69x = 58,382.78 × 27,015.53
4. Step 4: Simplify right side
   42,321.69x = 1,577,241,317.58
5. Step 5: Solve for x
   x = 1,577,241,317.58/42,321.69
6. Step 6: Final answer
   x = 37,267.92