Finding the Fourth Proportional to 31,388.08, 47,083.76 and 8,014.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,388.08 : 47,083.76 = 8,014.72 : x
2. Step 2: Convert to fraction form
   31,388.08/47,083.76 = 8,014.72/x
3. Step 3: Cross multiply
   31,388.08x = 47,083.76 × 8,014.72
4. Step 4: Simplify right side
   31,388.08x = 377,363,152.95
5. Step 5: Solve for x
   x = 377,363,152.95/31,388.08
6. Step 6: Final answer
   x = 12,022.50