Finding the Fourth Proportional to 7,113.31, 10,663.08 and 3,994.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,113.31 : 10,663.08 = 3,994.81 : x
2. Step 2: Convert to fraction form
   7,113.31/10,663.08 = 3,994.81/x
3. Step 3: Cross multiply
   7,113.31x = 10,663.08 × 3,994.81
4. Step 4: Simplify right side
   7,113.31x = 42,596,978.61
5. Step 5: Solve for x
   x = 42,596,978.61/7,113.31
6. Step 6: Final answer
   x = 5,988.35