Finding the Fourth Proportional to 9,314.40, 13,968.63 and 3,072.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.40 : 13,968.63 = 3,072.99 : x
2. Step 2: Convert to fraction form
   9,314.40/13,968.63 = 3,072.99/x
3. Step 3: Cross multiply
   9,314.40x = 13,968.63 × 3,072.99
4. Step 4: Simplify right side
   9,314.40x = 42,925,460.30
5. Step 5: Solve for x
   x = 42,925,460.30/9,314.40
6. Step 6: Final answer
   x = 4,608.51