Finding the Fourth Proportional to 9,316.30, 13,971.48 and 3,075.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,316.30 : 13,971.48 = 3,075.15 : x
2. Step 2: Convert to fraction form
   9,316.30/13,971.48 = 3,075.15/x
3. Step 3: Cross multiply
   9,316.30x = 13,971.48 × 3,075.15
4. Step 4: Simplify right side
   9,316.30x = 42,964,396.72
5. Step 5: Solve for x
   x = 42,964,396.72/9,316.30
6. Step 6: Final answer
   x = 4,611.74