Finding the Fourth Proportional to 22,947.06, 31,670.52 and 12,879.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,947.06 : 31,670.52 = 12,879.58 : x
2. Step 2: Convert to fraction form
   22,947.06/31,670.52 = 12,879.58/x
3. Step 3: Cross multiply
   22,947.06x = 31,670.52 × 12,879.58
4. Step 4: Simplify right side
   22,947.06x = 407,902,995.98
5. Step 5: Solve for x
   x = 407,902,995.98/22,947.06
6. Step 6: Final answer
   x = 17,775.83