Finding the Fourth Proportional to 42,978.72, 59,309.70 and 23,857.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42,978.72 : 59,309.70 = 23,857.37 : x
2. Step 2: Convert to fraction form
   42,978.72/59,309.70 = 23,857.37/x
3. Step 3: Cross multiply
   42,978.72x = 59,309.70 × 23,857.37
4. Step 4: Simplify right side
   42,978.72x = 1,414,973,457.49
5. Step 5: Solve for x
   x = 1,414,973,457.49/42,978.72
6. Step 6: Final answer
   x = 32,922.65