Finding the Fourth Proportional to 113,379.50, 156,463.72 and 63,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,379.50 : 156,463.72 = 63,078.50 : x
2. Step 2: Convert to fraction form
   113,379.50/156,463.72 = 63,078.50/x
3. Step 3: Cross multiply
   113,379.50x = 156,463.72 × 63,078.50
4. Step 4: Simplify right side
   113,379.50x = 9,869,496,762.02
5. Step 5: Solve for x
   x = 9,869,496,762.02/113,379.50
6. Step 6: Final answer
   x = 87,048.34