Finding the Fourth Proportional to 11,300.10, 15,583.97 and 7,713.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.10 : 15,583.97 = 7,713.42 : x
2. Step 2: Convert to fraction form
   11,300.10/15,583.97 = 7,713.42/x
3. Step 3: Cross multiply
   11,300.10x = 15,583.97 × 7,713.42
4. Step 4: Simplify right side
   11,300.10x = 120,205,667.31
5. Step 5: Solve for x
   x = 120,205,667.31/11,300.10
6. Step 6: Final answer
   x = 10,637.58