Finding the Fourth Proportional to 31,401.12, 47,106.54 and 10,623

Step by Step Solution

1. Step 1: Write the proportion equation
   31,401.12 : 47,106.54 = 10,623 : x
2. Step 2: Convert to fraction form
   31,401.12/47,106.54 = 10,623/x
3. Step 3: Cross multiply
   31,401.12x = 47,106.54 × 10,623
4. Step 4: Simplify right side
   31,401.12x = 500,412,774.42
5. Step 5: Solve for x
   x = 500,412,774.42/31,401.12
6. Step 6: Final answer
   x = 15,936.14