Finding the Fourth Proportional to 31,007.36, 46,483.73 and 12,300.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.36 : 46,483.73 = 12,300.53 : x
2. Step 2: Convert to fraction form
   31,007.36/46,483.73 = 12,300.53/x
3. Step 3: Cross multiply
   31,007.36x = 46,483.73 × 12,300.53
4. Step 4: Simplify right side
   31,007.36x = 571,774,772.56
5. Step 5: Solve for x
   x = 571,774,772.56/31,007.36
6. Step 6: Final answer
   x = 18,439.97