Finding the Fourth Proportional to 8,597.31, 12,900.74 and 4,648.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,597.31 : 12,900.74 = 4,648.47 : x
2. Step 2: Convert to fraction form
   8,597.31/12,900.74 = 4,648.47/x
3. Step 3: Cross multiply
   8,597.31x = 12,900.74 × 4,648.47
4. Step 4: Simplify right side
   8,597.31x = 59,968,679.63
5. Step 5: Solve for x
   x = 59,968,679.63/8,597.31
6. Step 6: Final answer
   x = 6,975.28