Finding the Fourth Proportional to 78,900.48, 118,350.72 and 32,145.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,900.48 : 118,350.72 = 32,145.12 : x
2. Step 2: Convert to fraction form
   78,900.48/118,350.72 = 32,145.12/x
3. Step 3: Cross multiply
   78,900.48x = 118,350.72 × 32,145.12
4. Step 4: Simplify right side
   78,900.48x = 3,804,398,096.49
5. Step 5: Solve for x
   x = 3,804,398,096.49/78,900.48
6. Step 6: Final answer
   x = 48,217.68