Finding the Fourth Proportional to 10,498.95, 15,738.39 and 7,386.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,498.95 : 15,738.39 = 7,386.12 : x
2. Step 2: Convert to fraction form
   10,498.95/15,738.39 = 7,386.12/x
3. Step 3: Cross multiply
   10,498.95x = 15,738.39 × 7,386.12
4. Step 4: Simplify right side
   10,498.95x = 116,245,637.15
5. Step 5: Solve for x
   x = 116,245,637.15/10,498.95
6. Step 6: Final answer
   x = 11,072.12