Finding the Fourth Proportional to 103,579.49, 142,947.18 and 63,300.96

Step by Step Solution

1. Step 1: Write the proportion equation
   103,579.49 : 142,947.18 = 63,300.96 : x
2. Step 2: Convert to fraction form
   103,579.49/142,947.18 = 63,300.96/x
3. Step 3: Cross multiply
   103,579.49x = 142,947.18 × 63,300.96
4. Step 4: Simplify right side
   103,579.49x = 9,048,693,723.29
5. Step 5: Solve for x
   x = 9,048,693,723.29/103,579.49
6. Step 6: Final answer
   x = 87,359.90