Finding the Fourth Proportional to 42,336.98, 63,494.48 and 20,106.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,336.98 : 63,494.48 = 20,106.12 : x
2. Step 2: Convert to fraction form
   42,336.98/63,494.48 = 20,106.12/x
3. Step 3: Cross multiply
   42,336.98x = 63,494.48 × 20,106.12
4. Step 4: Simplify right side
   42,336.98x = 1,276,627,922.59
5. Step 5: Solve for x
   x = 1,276,627,922.59/42,336.98
6. Step 6: Final answer
   x = 30,153.97