Finding the Fourth Proportional to 111,436.95, 153,745.59 and 63,656.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111,436.95 : 153,745.59 = 63,656.47 : x
2. Step 2: Convert to fraction form
   111,436.95/153,745.59 = 63,656.47/x
3. Step 3: Cross multiply
   111,436.95x = 153,745.59 × 63,656.47
4. Step 4: Simplify right side
   111,436.95x = 9,786,901,153.10
5. Step 5: Solve for x
   x = 9,786,901,153.10/111,436.95
6. Step 6: Final answer
   x = 87,824.56