Finding the Fourth Proportional to 11,345.18, 17,012.58 and 4,767.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,345.18 : 17,012.58 = 4,767.77 : x
2. Step 2: Convert to fraction form
   11,345.18/17,012.58 = 4,767.77/x
3. Step 3: Cross multiply
   11,345.18x = 17,012.58 × 4,767.77
4. Step 4: Simplify right side
   11,345.18x = 81,111,983.48
5. Step 5: Solve for x
   x = 81,111,983.48/11,345.18
6. Step 6: Final answer
   x = 7,149.47