Finding the Fourth Proportional to 113,621.27, 156,790.31 and 62,631.37

Step by Step Solution

1. Step 1: Write the proportion equation
   113,621.27 : 156,790.31 = 62,631.37 : x
2. Step 2: Convert to fraction form
   113,621.27/156,790.31 = 62,631.37/x
3. Step 3: Cross multiply
   113,621.27x = 156,790.31 × 62,631.37
4. Step 4: Simplify right side
   113,621.27x = 9,819,991,918.02
5. Step 5: Solve for x
   x = 9,819,991,918.02/113,621.27
6. Step 6: Final answer
   x = 86,427.41