Finding the Fourth Proportional to 5,300.32, 7,946.64 and 3,998.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.32 : 7,946.64 = 3,998.56 : x
2. Step 2: Convert to fraction form
   5,300.32/7,946.64 = 3,998.56/x
3. Step 3: Cross multiply
   5,300.32x = 7,946.64 × 3,998.56
4. Step 4: Simplify right side
   5,300.32x = 31,775,116.84
5. Step 5: Solve for x
   x = 31,775,116.84/5,300.32
6. Step 6: Final answer
   x = 5,994.94