Finding the Fourth Proportional to 31,072.56, 46,598.58 and 12,357.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.56 : 46,598.58 = 12,357.24 : x
2. Step 2: Convert to fraction form
   31,072.56/46,598.58 = 12,357.24/x
3. Step 3: Cross multiply
   31,072.56x = 46,598.58 × 12,357.24
4. Step 4: Simplify right side
   31,072.56x = 575,829,836.72
5. Step 5: Solve for x
   x = 575,829,836.72/31,072.56
6. Step 6: Final answer
   x = 18,531.78