Finding the Fourth Proportional to 42,076.50, 63,115.23 and 10,909.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,076.50 : 63,115.23 = 10,909.86 : x
2. Step 2: Convert to fraction form
   42,076.50/63,115.23 = 10,909.86/x
3. Step 3: Cross multiply
   42,076.50x = 63,115.23 × 10,909.86
4. Step 4: Simplify right side
   42,076.50x = 688,578,323.17
5. Step 5: Solve for x
   x = 688,578,323.17/42,076.50
6. Step 6: Final answer
   x = 16,364.91