Finding the Fourth Proportional to 11,667.80, 17,501.56 and 2,902.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.80 : 17,501.56 = 2,902.79 : x
2. Step 2: Convert to fraction form
   11,667.80/17,501.56 = 2,902.79/x
3. Step 3: Cross multiply
   11,667.80x = 17,501.56 × 2,902.79
4. Step 4: Simplify right side
   11,667.80x = 50,803,389.85
5. Step 5: Solve for x
   x = 50,803,389.85/11,667.80
6. Step 6: Final answer
   x = 4,354.15