Finding the Fourth Proportional to 42,279.93, 63,414.86 and 11,117.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,279.93 : 63,414.86 = 11,117.61 : x
2. Step 2: Convert to fraction form
   42,279.93/63,414.86 = 11,117.61/x
3. Step 3: Cross multiply
   42,279.93x = 63,414.86 × 11,117.61
4. Step 4: Simplify right side
   42,279.93x = 705,021,626.10
5. Step 5: Solve for x
   x = 705,021,626.10/42,279.93
6. Step 6: Final answer
   x = 16,675.09