Finding the Fourth Proportional to 57,019.71, 78,699.70 and 33,160.15

Step by Step Solution

1. Step 1: Write the proportion equation
   57,019.71 : 78,699.70 = 33,160.15 : x
2. Step 2: Convert to fraction form
   57,019.71/78,699.70 = 33,160.15/x
3. Step 3: Cross multiply
   57,019.71x = 78,699.70 × 33,160.15
4. Step 4: Simplify right side
   57,019.71x = 2,609,693,577.31
5. Step 5: Solve for x
   x = 2,609,693,577.31/57,019.71
6. Step 6: Final answer
   x = 45,768.27