Finding the Fourth Proportional to 10,075.80, 13,903.04 and 5,599.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,075.80 : 13,903.04 = 5,599.12 : x
2. Step 2: Convert to fraction form
   10,075.80/13,903.04 = 5,599.12/x
3. Step 3: Cross multiply
   10,075.80x = 13,903.04 × 5,599.12
4. Step 4: Simplify right side
   10,075.80x = 77,844,789.32
5. Step 5: Solve for x
   x = 77,844,789.32/10,075.80
6. Step 6: Final answer
   x = 7,725.92