Finding the Fourth Proportional to 113,965.52, 157,272.84 and 63,665.36

Step by Step Solution

1. Step 1: Write the proportion equation
   113,965.52 : 157,272.84 = 63,665.36 : x
2. Step 2: Convert to fraction form
   113,965.52/157,272.84 = 63,665.36/x
3. Step 3: Cross multiply
   113,965.52x = 157,272.84 × 63,665.36
4. Step 4: Simplify right side
   113,965.52x = 10,012,831,976.82
5. Step 5: Solve for x
   x = 10,012,831,976.82/113,965.52
6. Step 6: Final answer
   x = 87,858.43