Finding the Fourth Proportional to 10,501.95, 15,742.89 and 7,389.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,501.95 : 15,742.89 = 7,389.12 : x
2. Step 2: Convert to fraction form
   10,501.95/15,742.89 = 7,389.12/x
3. Step 3: Cross multiply
   10,501.95x = 15,742.89 × 7,389.12
4. Step 4: Simplify right side
   10,501.95x = 116,326,103.36
5. Step 5: Solve for x
   x = 116,326,103.36/10,501.95
6. Step 6: Final answer
   x = 11,076.62