Finding the Fourth Proportional to 9,469.32, 13,071.72 and 5,931.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,469.32 : 13,071.72 = 5,931.78 : x
2. Step 2: Convert to fraction form
   9,469.32/13,071.72 = 5,931.78/x
3. Step 3: Cross multiply
   9,469.32x = 13,071.72 × 5,931.78
4. Step 4: Simplify right side
   9,469.32x = 77,538,567.26
5. Step 5: Solve for x
   x = 77,538,567.26/9,469.32
6. Step 6: Final answer
   x = 8,188.40