Finding the Fourth Proportional to 42,975.28, 59,308.50 and 28,610.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,975.28 : 59,308.50 = 28,610.32 : x
2. Step 2: Convert to fraction form
   42,975.28/59,308.50 = 28,610.32/x
3. Step 3: Cross multiply
   42,975.28x = 59,308.50 × 28,610.32
4. Step 4: Simplify right side
   42,975.28x = 1,696,835,163.72
5. Step 5: Solve for x
   x = 1,696,835,163.72/42,975.28
6. Step 6: Final answer
   x = 39,483.98