Finding the Fourth Proportional to 9,069.72, 12,516.17 and 5,091

Step by Step Solution

1. Step 1: Write the proportion equation
   9,069.72 : 12,516.17 = 5,091 : x
2. Step 2: Convert to fraction form
   9,069.72/12,516.17 = 5,091/x
3. Step 3: Cross multiply
   9,069.72x = 12,516.17 × 5,091
4. Step 4: Simplify right side
   9,069.72x = 63,719,796.02
5. Step 5: Solve for x
   x = 63,719,796.02/9,069.72
6. Step 6: Final answer
   x = 7,025.55