Finding the Fourth Proportional to 42,077, 63,115.98 and 10,910.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,077 : 63,115.98 = 10,910.36 : x
2. Step 2: Convert to fraction form
   42,077/63,115.98 = 10,910.36/x
3. Step 3: Cross multiply
   42,077x = 63,115.98 × 10,910.36
4. Step 4: Simplify right side
   42,077x = 688,618,063.55
5. Step 5: Solve for x
   x = 688,618,063.55/42,077
6. Step 6: Final answer
   x = 16,365.66