Finding the Fourth Proportional to 113,736.50, 156,956.37 and 63,435.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,736.50 : 156,956.37 = 63,435.50 : x
2. Step 2: Convert to fraction form
   113,736.50/156,956.37 = 63,435.50/x
3. Step 3: Cross multiply
   113,736.50x = 156,956.37 × 63,435.50
4. Step 4: Simplify right side
   113,736.50x = 9,956,605,809.14
5. Step 5: Solve for x
   x = 9,956,605,809.14/113,736.50
6. Step 6: Final answer
   x = 87,540.99