Finding the Fourth Proportional to 42,375.51, 63,563.61 and 10,785.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,375.51 : 63,563.61 = 10,785.60 : x
2. Step 2: Convert to fraction form
   42,375.51/63,563.61 = 10,785.60/x
3. Step 3: Cross multiply
   42,375.51x = 63,563.61 × 10,785.60
4. Step 4: Simplify right side
   42,375.51x = 685,571,672.02
5. Step 5: Solve for x
   x = 685,571,672.02/42,375.51
6. Step 6: Final answer
   x = 16,178.49