Finding the Fourth Proportional to 42,189.44, 63,290.72 and 14,100.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,189.44 : 63,290.72 = 14,100.80 : x
2. Step 2: Convert to fraction form
   42,189.44/63,290.72 = 14,100.80/x
3. Step 3: Cross multiply
   42,189.44x = 63,290.72 × 14,100.80
4. Step 4: Simplify right side
   42,189.44x = 892,449,784.58
5. Step 5: Solve for x
   x = 892,449,784.58/42,189.44
6. Step 6: Final answer
   x = 21,153.39