Finding the Fourth Proportional to 57,090.88, 78,860.71 and 43,826.05

Step by Step Solution

1. Step 1: Write the proportion equation
   57,090.88 : 78,860.71 = 43,826.05 : x
2. Step 2: Convert to fraction form
   57,090.88/78,860.71 = 43,826.05/x
3. Step 3: Cross multiply
   57,090.88x = 78,860.71 × 43,826.05
4. Step 4: Simplify right side
   57,090.88x = 3,456,153,419.50
5. Step 5: Solve for x
   x = 3,456,153,419.50/57,090.88
6. Step 6: Final answer
   x = 60,537.75