Finding the Fourth Proportional to 9,091.82, 13,619.91 and 4,712.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.82 : 13,619.91 = 4,712.15 : x
2. Step 2: Convert to fraction form
   9,091.82/13,619.91 = 4,712.15/x
3. Step 3: Cross multiply
   9,091.82x = 13,619.91 × 4,712.15
4. Step 4: Simplify right side
   9,091.82x = 64,179,058.91
5. Step 5: Solve for x
   x = 64,179,058.91/9,091.82
6. Step 6: Final answer
   x = 7,058.99