Finding the Fourth Proportional to 113,674.73, 156,871.89 and 62,689.28

Step by Step Solution

1. Step 1: Write the proportion equation
   113,674.73 : 156,871.89 = 62,689.28 : x
2. Step 2: Convert to fraction form
   113,674.73/156,871.89 = 62,689.28/x
3. Step 3: Cross multiply
   113,674.73x = 156,871.89 × 62,689.28
4. Step 4: Simplify right side
   113,674.73x = 9,834,185,051.98
5. Step 5: Solve for x
   x = 9,834,185,051.98/113,674.73
6. Step 6: Final answer
   x = 86,511.62