Finding the Fourth Proportional to 83,530.88, 115,270.56 and 45,288.32

Step by Step Solution

1. Step 1: Write the proportion equation
   83,530.88 : 115,270.56 = 45,288.32 : x
2. Step 2: Convert to fraction form
   83,530.88/115,270.56 = 45,288.32/x
3. Step 3: Cross multiply
   83,530.88x = 115,270.56 × 45,288.32
4. Step 4: Simplify right side
   83,530.88x = 5,220,410,007.86
5. Step 5: Solve for x
   x = 5,220,410,007.86/83,530.88
6. Step 6: Final answer
   x = 62,496.77