Finding the Fourth Proportional to 9,901.84, 13,665.72 and 5,710

Step by Step Solution

1. Step 1: Write the proportion equation
   9,901.84 : 13,665.72 = 5,710 : x
2. Step 2: Convert to fraction form
   9,901.84/13,665.72 = 5,710/x
3. Step 3: Cross multiply
   9,901.84x = 13,665.72 × 5,710
4. Step 4: Simplify right side
   9,901.84x = 78,031,261.20
5. Step 5: Solve for x
   x = 78,031,261.20/9,901.84
6. Step 6: Final answer
   x = 7,880.48