Finding the Fourth Proportional to 60,105.47, 90,078.58 and 31,964.94

Step by Step Solution

1. Step 1: Write the proportion equation
   60,105.47 : 90,078.58 = 31,964.94 : x
2. Step 2: Convert to fraction form
   60,105.47/90,078.58 = 31,964.94/x
3. Step 3: Cross multiply
   60,105.47x = 90,078.58 × 31,964.94
4. Step 4: Simplify right side
   60,105.47x = 2,879,356,404.99
5. Step 5: Solve for x
   x = 2,879,356,404.99/60,105.47
6. Step 6: Final answer
   x = 47,905.06