Finding the Fourth Proportional to 31,376.37, 47,054.12 and 12,651.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,376.37 : 47,054.12 = 12,651.57 : x
2. Step 2: Convert to fraction form
   31,376.37/47,054.12 = 12,651.57/x
3. Step 3: Cross multiply
   31,376.37x = 47,054.12 × 12,651.57
4. Step 4: Simplify right side
   31,376.37x = 595,308,429.71
5. Step 5: Solve for x
   x = 595,308,429.71/31,376.37
6. Step 6: Final answer
   x = 18,973.15