Finding the Fourth Proportional to 9,992.77, 14,978.49 and 7,519.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992.77 : 14,978.49 = 7,519.93 : x
2. Step 2: Convert to fraction form
   9,992.77/14,978.49 = 7,519.93/x
3. Step 3: Cross multiply
   9,992.77x = 14,978.49 × 7,519.93
4. Step 4: Simplify right side
   9,992.77x = 112,637,196.31
5. Step 5: Solve for x
   x = 112,637,196.31/9,992.77
6. Step 6: Final answer
   x = 11,271.87