Finding the Fourth Proportional to 86,818.50, 119,810.25 and 47,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,818.50 : 119,810.25 = 47,074.50 : x
2. Step 2: Convert to fraction form
   86,818.50/119,810.25 = 47,074.50/x
3. Step 3: Cross multiply
   86,818.50x = 119,810.25 × 47,074.50
4. Step 4: Simplify right side
   86,818.50x = 5,640,007,613.63
5. Step 5: Solve for x
   x = 5,640,007,613.63/86,818.50
6. Step 6: Final answer
   x = 64,963.20