Finding the Fourth Proportional to 13,870.41, 19,141.16 and 7,582.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,870.41 : 19,141.16 = 7,582.78 : x
2. Step 2: Convert to fraction form
   13,870.41/19,141.16 = 7,582.78/x
3. Step 3: Cross multiply
   13,870.41x = 19,141.16 × 7,582.78
4. Step 4: Simplify right side
   13,870.41x = 145,143,205.22
5. Step 5: Solve for x
   x = 145,143,205.22/13,870.41
6. Step 6: Final answer
   x = 10,464.23