Finding the Fourth Proportional to 9,019.14, 13,516.35 and 5,072.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.14 : 13,516.35 = 5,072.31 : x
2. Step 2: Convert to fraction form
   9,019.14/13,516.35 = 5,072.31/x
3. Step 3: Cross multiply
   9,019.14x = 13,516.35 × 5,072.31
4. Step 4: Simplify right side
   9,019.14x = 68,559,117.27
5. Step 5: Solve for x
   x = 68,559,117.27/9,019.14
6. Step 6: Final answer
   x = 7,601.51