Finding the Fourth Proportional to 32,012.30, 48,018.47 and 12,280.10

Step by Step Solution

1. Step 1: Write the proportion equation
   32,012.30 : 48,018.47 = 12,280.10 : x
2. Step 2: Convert to fraction form
   32,012.30/48,018.47 = 12,280.10/x
3. Step 3: Cross multiply
   32,012.30x = 48,018.47 × 12,280.10
4. Step 4: Simplify right side
   32,012.30x = 589,671,311.95
5. Step 5: Solve for x
   x = 589,671,311.95/32,012.30
6. Step 6: Final answer
   x = 18,420.15