Finding the Fourth Proportional to 12,075.66, 18,105.69 and 5,053.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,075.66 : 18,105.69 = 5,053.77 : x
2. Step 2: Convert to fraction form
   12,075.66/18,105.69 = 5,053.77/x
3. Step 3: Cross multiply
   12,075.66x = 18,105.69 × 5,053.77
4. Step 4: Simplify right side
   12,075.66x = 91,501,992.95
5. Step 5: Solve for x
   x = 91,501,992.95/12,075.66
6. Step 6: Final answer
   x = 7,577.39