Finding the Fourth Proportional to 11,776.42, 17,667.06 and 3,456.70

Step by Step Solution

1. Step 1: Write the proportion equation
   11,776.42 : 17,667.06 = 3,456.70 : x
2. Step 2: Convert to fraction form
   11,776.42/17,667.06 = 3,456.70/x
3. Step 3: Cross multiply
   11,776.42x = 17,667.06 × 3,456.70
4. Step 4: Simplify right side
   11,776.42x = 61,069,726.30
5. Step 5: Solve for x
   x = 61,069,726.30/11,776.42
6. Step 6: Final answer
   x = 5,185.76