Finding the Fourth Proportional to 42,958.83, 64,399.35 and 15,250.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,958.83 : 64,399.35 = 15,250.35 : x
2. Step 2: Convert to fraction form
   42,958.83/64,399.35 = 15,250.35/x
3. Step 3: Cross multiply
   42,958.83x = 64,399.35 × 15,250.35
4. Step 4: Simplify right side
   42,958.83x = 982,112,627.27
5. Step 5: Solve for x
   x = 982,112,627.27/42,958.83
6. Step 6: Final answer
   x = 22,861.72