Finding the Fourth Proportional to 10,012.58, 15,018.71 and 2,992.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,012.58 : 15,018.71 = 2,992.61 : x
2. Step 2: Convert to fraction form
   10,012.58/15,018.71 = 2,992.61/x
3. Step 3: Cross multiply
   10,012.58x = 15,018.71 × 2,992.61
4. Step 4: Simplify right side
   10,012.58x = 44,945,126.77
5. Step 5: Solve for x
   x = 44,945,126.77/10,012.58
6. Step 6: Final answer
   x = 4,488.87