Finding the Fourth Proportional to 39,079.74, 58,558.14 and 30,216.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,079.74 : 58,558.14 = 30,216.72 : x
2. Step 2: Convert to fraction form
   39,079.74/58,558.14 = 30,216.72/x
3. Step 3: Cross multiply
   39,079.74x = 58,558.14 × 30,216.72
4. Step 4: Simplify right side
   39,079.74x = 1,769,434,920.10
5. Step 5: Solve for x
   x = 1,769,434,920.10/39,079.74
6. Step 6: Final answer
   x = 45,277.55