Finding the Fourth Proportional to 22,619.31, 31,213.83 and 12,548.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,619.31 : 31,213.83 = 12,548.19 : x
2. Step 2: Convert to fraction form
   22,619.31/31,213.83 = 12,548.19/x
3. Step 3: Cross multiply
   22,619.31x = 31,213.83 × 12,548.19
4. Step 4: Simplify right side
   22,619.31x = 391,677,069.47
5. Step 5: Solve for x
   x = 391,677,069.47/22,619.31
6. Step 6: Final answer
   x = 17,316.05