Finding the Fourth Proportional to 64,640.52, 89,173.98 and 37,784.16

Step by Step Solution

1. Step 1: Write the proportion equation
   64,640.52 : 89,173.98 = 37,784.16 : x
2. Step 2: Convert to fraction form
   64,640.52/89,173.98 = 37,784.16/x
3. Step 3: Cross multiply
   64,640.52x = 89,173.98 × 37,784.16
4. Step 4: Simplify right side
   64,640.52x = 3,369,363,928.16
5. Step 5: Solve for x
   x = 3,369,363,928.16/64,640.52
6. Step 6: Final answer
   x = 52,124.64