Finding the Fourth Proportional to 42,005.76, 62,930.56 and 18,259.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,005.76 : 62,930.56 = 18,259.84 : x
2. Step 2: Convert to fraction form
   42,005.76/62,930.56 = 18,259.84/x
3. Step 3: Cross multiply
   42,005.76x = 62,930.56 × 18,259.84
4. Step 4: Simplify right side
   42,005.76x = 1,149,101,956.71
5. Step 5: Solve for x
   x = 1,149,101,956.71/42,005.76
6. Step 6: Final answer
   x = 27,355.82