Finding the Fourth Proportional to 9,993.34, 14,985.64 and 5,312.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.34 : 14,985.64 = 5,312.23 : x
2. Step 2: Convert to fraction form
   9,993.34/14,985.64 = 5,312.23/x
3. Step 3: Cross multiply
   9,993.34x = 14,985.64 × 5,312.23
4. Step 4: Simplify right side
   9,993.34x = 79,607,166.38
5. Step 5: Solve for x
   x = 79,607,166.38/9,993.34
6. Step 6: Final answer
   x = 7,966.02