Finding the Fourth Proportional to 13,773.88, 19,007.76 and 7,486.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773.88 : 19,007.76 = 7,486.12 : x
2. Step 2: Convert to fraction form
   13,773.88/19,007.76 = 7,486.12/x
3. Step 3: Cross multiply
   13,773.88x = 19,007.76 × 7,486.12
4. Step 4: Simplify right side
   13,773.88x = 142,294,372.29
5. Step 5: Solve for x
   x = 142,294,372.29/13,773.88
6. Step 6: Final answer
   x = 10,330.74