Finding the Fourth Proportional to 71,960.82, 99,463.59 and 63,397.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,960.82 : 99,463.59 = 63,397.50 : x
2. Step 2: Convert to fraction form
   71,960.82/99,463.59 = 63,397.50/x
3. Step 3: Cross multiply
   71,960.82x = 99,463.59 × 63,397.50
4. Step 4: Simplify right side
   71,960.82x = 6,305,742,947.03
5. Step 5: Solve for x
   x = 6,305,742,947.03/71,960.82
6. Step 6: Final answer
   x = 87,627.45