Finding the Fourth Proportional to 64,715.49, 89,289.93 and 37,864.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,715.49 : 89,289.93 = 37,864.60 : x
2. Step 2: Convert to fraction form
   64,715.49/89,289.93 = 37,864.60/x
3. Step 3: Cross multiply
   64,715.49x = 89,289.93 × 37,864.60
4. Step 4: Simplify right side
   64,715.49x = 3,380,927,483.48
5. Step 5: Solve for x
   x = 3,380,927,483.48/64,715.49
6. Step 6: Final answer
   x = 52,242.94