Finding the Fourth Proportional to 113,819.50, 157,071 and 63,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,819.50 : 157,071 = 63,518.50 : x
2. Step 2: Convert to fraction form
   113,819.50/157,071 = 63,518.50/x
3. Step 3: Cross multiply
   113,819.50x = 157,071 × 63,518.50
4. Step 4: Simplify right side
   113,819.50x = 9,976,914,313.50
5. Step 5: Solve for x
   x = 9,976,914,313.50/113,819.50
6. Step 6: Final answer
   x = 87,655.58