Finding the Fourth Proportional to 42,025.01, 63,046.86 and 18,336.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,025.01 : 63,046.86 = 18,336.40 : x
2. Step 2: Convert to fraction form
   42,025.01/63,046.86 = 18,336.40/x
3. Step 3: Cross multiply
   42,025.01x = 63,046.86 × 18,336.40
4. Step 4: Simplify right side
   42,025.01x = 1,156,052,128.47
5. Step 5: Solve for x
   x = 1,156,052,128.47/42,025.01
6. Step 6: Final answer
   x = 27,508.67