Finding the Fourth Proportional to 31,126.46, 46,670.82 and 12,409.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,126.46 : 46,670.82 = 12,409.34 : x
2. Step 2: Convert to fraction form
   31,126.46/46,670.82 = 12,409.34/x
3. Step 3: Cross multiply
   31,126.46x = 46,670.82 × 12,409.34
4. Step 4: Simplify right side
   31,126.46x = 579,154,073.46
5. Step 5: Solve for x
   x = 579,154,073.46/31,126.46
6. Step 6: Final answer
   x = 18,606.49