Finding the Fourth Proportional to 9,865.02, 13,613.82 and 5,388.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,865.02 : 13,613.82 = 5,388.84 : x
2. Step 2: Convert to fraction form
   9,865.02/13,613.82 = 5,388.84/x
3. Step 3: Cross multiply
   9,865.02x = 13,613.82 × 5,388.84
4. Step 4: Simplify right side
   9,865.02x = 73,362,697.77
5. Step 5: Solve for x
   x = 73,362,697.77/9,865.02
6. Step 6: Final answer
   x = 7,436.65