Finding the Fourth Proportional to 10,112.37, 15,158.29 and 3,870.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,112.37 : 15,158.29 = 3,870.78 : x
2. Step 2: Convert to fraction form
   10,112.37/15,158.29 = 3,870.78/x
3. Step 3: Cross multiply
   10,112.37x = 15,158.29 × 3,870.78
4. Step 4: Simplify right side
   10,112.37x = 58,674,405.77
5. Step 5: Solve for x
   x = 58,674,405.77/10,112.37
6. Step 6: Final answer
   x = 5,802.24