Finding the Fourth Proportional to 9,071.37, 13,602.68 and 7,091.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,071.37 : 13,602.68 = 7,091.99 : x
2. Step 2: Convert to fraction form
   9,071.37/13,602.68 = 7,091.99/x
3. Step 3: Cross multiply
   9,071.37x = 13,602.68 × 7,091.99
4. Step 4: Simplify right side
   9,071.37x = 96,469,967.06
5. Step 5: Solve for x
   x = 96,469,967.06/9,071.37
6. Step 6: Final answer
   x = 10,634.56