Finding the Fourth Proportional to 42,841.40, 59,121.30 and 23,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,841.40 : 59,121.30 = 23,978.50 : x
2. Step 2: Convert to fraction form
   42,841.40/59,121.30 = 23,978.50/x
3. Step 3: Cross multiply
   42,841.40x = 59,121.30 × 23,978.50
4. Step 4: Simplify right side
   42,841.40x = 1,417,640,092.05
5. Step 5: Solve for x
   x = 1,417,640,092.05/42,841.40
6. Step 6: Final answer
   x = 33,090.42