Finding the Fourth Proportional to 10,130.37, 13,947.59 and 8,870.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,130.37 : 13,947.59 = 8,870.11 : x
2. Step 2: Convert to fraction form
   10,130.37/13,947.59 = 8,870.11/x
3. Step 3: Cross multiply
   10,130.37x = 13,947.59 × 8,870.11
4. Step 4: Simplify right side
   10,130.37x = 123,716,644.84
5. Step 5: Solve for x
   x = 123,716,644.84/10,130.37
6. Step 6: Final answer
   x = 12,212.46