Finding the Fourth Proportional to 16,434.08, 22,649.28 and 12,973.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,434.08 : 22,649.28 = 12,973.76 : x
2. Step 2: Convert to fraction form
   16,434.08/22,649.28 = 12,973.76/x
3. Step 3: Cross multiply
   16,434.08x = 22,649.28 × 12,973.76
4. Step 4: Simplify right side
   16,434.08x = 293,846,322.89
5. Step 5: Solve for x
   x = 293,846,322.89/16,434.08
6. Step 6: Final answer
   x = 17,880.30