Finding the Fourth Proportional to 42,435.27, 63,535.86 and 28,375.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,435.27 : 63,535.86 = 28,375.83 : x
2. Step 2: Convert to fraction form
   42,435.27/63,535.86 = 28,375.83/x
3. Step 3: Cross multiply
   42,435.27x = 63,535.86 × 28,375.83
4. Step 4: Simplify right side
   42,435.27x = 1,802,882,762.26
5. Step 5: Solve for x
   x = 1,802,882,762.26/42,435.27
6. Step 6: Final answer
   x = 42,485.48