Finding the Fourth Proportional to 13,807.76, 19,054.71 and 7,520.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,807.76 : 19,054.71 = 7,520.14 : x
2. Step 2: Convert to fraction form
   13,807.76/19,054.71 = 7,520.14/x
3. Step 3: Cross multiply
   13,807.76x = 19,054.71 × 7,520.14
4. Step 4: Simplify right side
   13,807.76x = 143,294,039.22
5. Step 5: Solve for x
   x = 143,294,039.22/13,807.76
6. Step 6: Final answer
   x = 10,377.79