Finding the Fourth Proportional to 31,598.27, 47,356.41 and 12,856.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,598.27 : 47,356.41 = 12,856.49 : x
2. Step 2: Convert to fraction form
   31,598.27/47,356.41 = 12,856.49/x
3. Step 3: Cross multiply
   31,598.27x = 47,356.41 × 12,856.49
4. Step 4: Simplify right side
   31,598.27x = 608,837,200.62
5. Step 5: Solve for x
   x = 608,837,200.62/31,598.27
6. Step 6: Final answer
   x = 19,268.06