Finding the Fourth Proportional to 7,667.39, 11,501.12 and 2,120.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,667.39 : 11,501.12 = 2,120.58 : x
2. Step 2: Convert to fraction form
   7,667.39/11,501.12 = 2,120.58/x
3. Step 3: Cross multiply
   7,667.39x = 11,501.12 × 2,120.58
4. Step 4: Simplify right side
   7,667.39x = 24,389,050.35
5. Step 5: Solve for x
   x = 24,389,050.35/7,667.39
6. Step 6: Final answer
   x = 3,180.88