Finding the Fourth Proportional to 81,418.94, 112,359.30 and 47,426.54

Step by Step Solution

1. Step 1: Write the proportion equation
   81,418.94 : 112,359.30 = 47,426.54 : x
2. Step 2: Convert to fraction form
   81,418.94/112,359.30 = 47,426.54/x
3. Step 3: Cross multiply
   81,418.94x = 112,359.30 × 47,426.54
4. Step 4: Simplify right side
   81,418.94x = 5,328,812,835.82
5. Step 5: Solve for x
   x = 5,328,812,835.82/81,418.94
6. Step 6: Final answer
   x = 65,449.30