Finding the Fourth Proportional to 9,307.16, 12,848.28 and 5,905.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,307.16 : 12,848.28 = 5,905.88 : x
2. Step 2: Convert to fraction form
   9,307.16/12,848.28 = 5,905.88/x
3. Step 3: Cross multiply
   9,307.16x = 12,848.28 × 5,905.88
4. Step 4: Simplify right side
   9,307.16x = 75,880,399.89
5. Step 5: Solve for x
   x = 75,880,399.89/9,307.16
6. Step 6: Final answer
   x = 8,152.91