Finding the Fourth Proportional to 31,071.50, 46,613.34 and 12,348.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,071.50 : 46,613.34 = 12,348.05 : x
2. Step 2: Convert to fraction form
   31,071.50/46,613.34 = 12,348.05/x
3. Step 3: Cross multiply
   31,071.50x = 46,613.34 × 12,348.05
4. Step 4: Simplify right side
   31,071.50x = 575,583,558.18
5. Step 5: Solve for x
   x = 575,583,558.18/31,071.50
6. Step 6: Final answer
   x = 18,524.49