Finding the Fourth Proportional to 33,116.21, 45,710.22 and 18,978.47

Step by Step Solution

1. Step 1: Write the proportion equation
   33,116.21 : 45,710.22 = 18,978.47 : x
2. Step 2: Convert to fraction form
   33,116.21/45,710.22 = 18,978.47/x
3. Step 3: Cross multiply
   33,116.21x = 45,710.22 × 18,978.47
4. Step 4: Simplify right side
   33,116.21x = 867,509,810.41
5. Step 5: Solve for x
   x = 867,509,810.41/33,116.21
6. Step 6: Final answer
   x = 26,195.93