Finding the Fourth Proportional to 13,047.82, 19,547.12 and 10,111.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.82 : 19,547.12 = 10,111.77 : x
2. Step 2: Convert to fraction form
   13,047.82/19,547.12 = 10,111.77/x
3. Step 3: Cross multiply
   13,047.82x = 19,547.12 × 10,111.77
4. Step 4: Simplify right side
   13,047.82x = 197,656,006.88
5. Step 5: Solve for x
   x = 197,656,006.88/13,047.82
6. Step 6: Final answer
   x = 15,148.59