Finding the Fourth Proportional to 9,993.42, 14,973.12 and 5,599.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.42 : 14,973.12 = 5,599.98 : x
2. Step 2: Convert to fraction form
   9,993.42/14,973.12 = 5,599.98/x
3. Step 3: Cross multiply
   9,993.42x = 14,973.12 × 5,599.98
4. Step 4: Simplify right side
   9,993.42x = 83,849,172.54
5. Step 5: Solve for x
   x = 83,849,172.54/9,993.42
6. Step 6: Final answer
   x = 8,390.44