Finding the Fourth Proportional to 28,061.08, 42,104.58 and 12,483.16

Step by Step Solution

1. Step 1: Write the proportion equation
   28,061.08 : 42,104.58 = 12,483.16 : x
2. Step 2: Convert to fraction form
   28,061.08/42,104.58 = 12,483.16/x
3. Step 3: Cross multiply
   28,061.08x = 42,104.58 × 12,483.16
4. Step 4: Simplify right side
   28,061.08x = 525,598,208.87
5. Step 5: Solve for x
   x = 525,598,208.87/28,061.08
6. Step 6: Final answer
   x = 18,730.51