Finding the Fourth Proportional to 7,111.80, 10,663.56 and 4,774.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.80 : 10,663.56 = 4,774.56 : x
2. Step 2: Convert to fraction form
   7,111.80/10,663.56 = 4,774.56/x
3. Step 3: Cross multiply
   7,111.80x = 10,663.56 × 4,774.56
4. Step 4: Simplify right side
   7,111.80x = 50,913,807.03
5. Step 5: Solve for x
   x = 50,913,807.03/7,111.80
6. Step 6: Final answer
   x = 7,159.06