Finding the Fourth Proportional to 113,540.58, 156,683.96 and 63,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,540.58 : 156,683.96 = 63,238.50 : x
2. Step 2: Convert to fraction form
   113,540.58/156,683.96 = 63,238.50/x
3. Step 3: Cross multiply
   113,540.58x = 156,683.96 × 63,238.50
4. Step 4: Simplify right side
   113,540.58x = 9,908,458,604.46
5. Step 5: Solve for x
   x = 9,908,458,604.46/113,540.58
6. Step 6: Final answer
   x = 87,267.99