Finding the Fourth Proportional to 42,803.18, 58,934.22 and 38,866.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,803.18 : 58,934.22 = 38,866.58 : x
2. Step 2: Convert to fraction form
   42,803.18/58,934.22 = 38,866.58/x
3. Step 3: Cross multiply
   42,803.18x = 58,934.22 × 38,866.58
4. Step 4: Simplify right side
   42,803.18x = 2,290,571,576.37
5. Step 5: Solve for x
   x = 2,290,571,576.37/42,803.18
6. Step 6: Final answer
   x = 53,514.05