Finding the Fourth Proportional to 10,111, 15,162.06 and 5,110.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111 : 15,162.06 = 5,110.30 : x
2. Step 2: Convert to fraction form
   10,111/15,162.06 = 5,110.30/x
3. Step 3: Cross multiply
   10,111x = 15,162.06 × 5,110.30
4. Step 4: Simplify right side
   10,111x = 77,482,675.22
5. Step 5: Solve for x
   x = 77,482,675.22/10,111
6. Step 6: Final answer
   x = 7,663.21