Finding the Fourth Proportional to 42,133.01, 63,196.05 and 12,550.85

Step by Step Solution

1. Step 1: Write the proportion equation
   42,133.01 : 63,196.05 = 12,550.85 : x
2. Step 2: Convert to fraction form
   42,133.01/63,196.05 = 12,550.85/x
3. Step 3: Cross multiply
   42,133.01x = 63,196.05 × 12,550.85
4. Step 4: Simplify right side
   42,133.01x = 793,164,112.21
5. Step 5: Solve for x
   x = 793,164,112.21/42,133.01
6. Step 6: Final answer
   x = 18,825.24