Finding the Fourth Proportional to 9,715.82, 13,405.50 and 7,058.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,715.82 : 13,405.50 = 7,058.61 : x
2. Step 2: Convert to fraction form
   9,715.82/13,405.50 = 7,058.61/x
3. Step 3: Cross multiply
   9,715.82x = 13,405.50 × 7,058.61
4. Step 4: Simplify right side
   9,715.82x = 94,624,196.36
5. Step 5: Solve for x
   x = 94,624,196.36/9,715.82
6. Step 6: Final answer
   x = 9,739.19