Finding the Fourth Proportional to 42,840.92, 59,121.26 and 23,978.00

Step by Step Solution

1. Step 1: Write the proportion equation
   42,840.92 : 59,121.26 = 23,978.00 : x
2. Step 2: Convert to fraction form
   42,840.92/59,121.26 = 23,978.00/x
3. Step 3: Cross multiply
   42,840.92x = 59,121.26 × 23,978.00
4. Step 4: Simplify right side
   42,840.92x = 1,417,609,156.78
5. Step 5: Solve for x
   x = 1,417,609,156.78/42,840.92
6. Step 6: Final answer
   x = 33,090.08