Finding the Fourth Proportional to 64,880.72, 89,535.44 and 38,017.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,880.72 : 89,535.44 = 38,017.88 : x
2. Step 2: Convert to fraction form
   64,880.72/89,535.44 = 38,017.88/x
3. Step 3: Cross multiply
   64,880.72x = 89,535.44 × 38,017.88
4. Step 4: Simplify right side
   64,880.72x = 3,403,947,613.67
5. Step 5: Solve for x
   x = 3,403,947,613.67/64,880.72
6. Step 6: Final answer
   x = 52,464.70