Finding the Fourth Proportional to 11,345.34, 17,017.98 and 4,776.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,345.34 : 17,017.98 = 4,776.12 : x
2. Step 2: Convert to fraction form
   11,345.34/17,017.98 = 4,776.12/x
3. Step 3: Cross multiply
   11,345.34x = 17,017.98 × 4,776.12
4. Step 4: Simplify right side
   11,345.34x = 81,279,914.64
5. Step 5: Solve for x
   x = 81,279,914.64/11,345.34
6. Step 6: Final answer
   x = 7,164.17