Finding the Fourth Proportional to 30,962.72, 46,403.76 and 12,473.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,962.72 : 46,403.76 = 12,473.12 : x
2. Step 2: Convert to fraction form
   30,962.72/46,403.76 = 12,473.12/x
3. Step 3: Cross multiply
   30,962.72x = 46,403.76 × 12,473.12
4. Step 4: Simplify right side
   30,962.72x = 578,799,666.93
5. Step 5: Solve for x
   x = 578,799,666.93/30,962.72
6. Step 6: Final answer
   x = 18,693.44