Finding the Fourth Proportional to 64,904.17, 89,574.02 and 39,404.62

Step by Step Solution

1. Step 1: Write the proportion equation
   64,904.17 : 89,574.02 = 39,404.62 : x
2. Step 2: Convert to fraction form
   64,904.17/89,574.02 = 39,404.62/x
3. Step 3: Cross multiply
   64,904.17x = 89,574.02 × 39,404.62
4. Step 4: Simplify right side
   64,904.17x = 3,529,630,022.95
5. Step 5: Solve for x
   x = 3,529,630,022.95/64,904.17
6. Step 6: Final answer
   x = 54,382.18