Finding the Fourth Proportional to 31,085.82, 46,593.99 and 12,360.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,085.82 : 46,593.99 = 12,360.78 : x
2. Step 2: Convert to fraction form
   31,085.82/46,593.99 = 12,360.78/x
3. Step 3: Cross multiply
   31,085.82x = 46,593.99 × 12,360.78
4. Step 4: Simplify right side
   31,085.82x = 575,938,059.71
5. Step 5: Solve for x
   x = 575,938,059.71/31,085.82
6. Step 6: Final answer
   x = 18,527.36