Finding the Fourth Proportional to 10,002.15, 15,012.64 and 5,075.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,002.15 : 15,012.64 = 5,075.33 : x
2. Step 2: Convert to fraction form
   10,002.15/15,012.64 = 5,075.33/x
3. Step 3: Cross multiply
   10,002.15x = 15,012.64 × 5,075.33
4. Step 4: Simplify right side
   10,002.15x = 76,194,027.11
5. Step 5: Solve for x
   x = 76,194,027.11/10,002.15
6. Step 6: Final answer
   x = 7,617.76