Finding the Fourth Proportional to 31,386.78, 47,075.00 and 10,327.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,386.78 : 47,075.00 = 10,327.10 : x
2. Step 2: Convert to fraction form
   31,386.78/47,075.00 = 10,327.10/x
3. Step 3: Cross multiply
   31,386.78x = 47,075.00 × 10,327.10
4. Step 4: Simplify right side
   31,386.78x = 486,147,945.49
5. Step 5: Solve for x
   x = 486,147,945.49/31,386.78
6. Step 6: Final answer
   x = 15,488.94