Finding the Fourth Proportional to 64,483.68, 89,345.76 and 63,084

Step by Step Solution

1. Step 1: Write the proportion equation
   64,483.68 : 89,345.76 = 63,084 : x
2. Step 2: Convert to fraction form
   64,483.68/89,345.76 = 63,084/x
3. Step 3: Cross multiply
   64,483.68x = 89,345.76 × 63,084
4. Step 4: Simplify right side
   64,483.68x = 5,636,287,923.84
5. Step 5: Solve for x
   x = 5,636,287,923.84/64,483.68
6. Step 6: Final answer
   x = 87,406.42