Finding the Fourth Proportional to 7,091.79, 10,643.83 and 7,075.39

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.79 : 10,643.83 = 7,075.39 : x
2. Step 2: Convert to fraction form
   7,091.79/10,643.83 = 7,075.39/x
3. Step 3: Cross multiply
   7,091.79x = 10,643.83 × 7,075.39
4. Step 4: Simplify right side
   7,091.79x = 75,309,248.34
5. Step 5: Solve for x
   x = 75,309,248.34/7,091.79
6. Step 6: Final answer
   x = 10,619.22