Finding the Fourth Proportional to 13,774.70, 19,008.78 and 7,487.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,774.70 : 19,008.78 = 7,487.07 : x
2. Step 2: Convert to fraction form
   13,774.70/19,008.78 = 7,487.07/x
3. Step 3: Cross multiply
   13,774.70x = 19,008.78 × 7,487.07
4. Step 4: Simplify right side
   13,774.70x = 142,320,066.47
5. Step 5: Solve for x
   x = 142,320,066.47/13,774.70
6. Step 6: Final answer
   x = 10,331.99