Finding the Fourth Proportional to 57,219.53, 78,947.11 and 33,018.81

Step by Step Solution

1. Step 1: Write the proportion equation
   57,219.53 : 78,947.11 = 33,018.81 : x
2. Step 2: Convert to fraction form
   57,219.53/78,947.11 = 33,018.81/x
3. Step 3: Cross multiply
   57,219.53x = 78,947.11 × 33,018.81
4. Step 4: Simplify right side
   57,219.53x = 2,606,739,065.31
5. Step 5: Solve for x
   x = 2,606,739,065.31/57,219.53
6. Step 6: Final answer
   x = 45,556.81