Finding the Fourth Proportional to 9,931.12, 13,702.49 and 5,624.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.12 : 13,702.49 = 5,624.28 : x
2. Step 2: Convert to fraction form
   9,931.12/13,702.49 = 5,624.28/x
3. Step 3: Cross multiply
   9,931.12x = 13,702.49 × 5,624.28
4. Step 4: Simplify right side
   9,931.12x = 77,066,640.46
5. Step 5: Solve for x
   x = 77,066,640.46/9,931.12
6. Step 6: Final answer
   x = 7,760.12