Finding the Fourth Proportional to 111,496.31, 153,875.48 and 63,740.33

Step by Step Solution

1. Step 1: Write the proportion equation
   111,496.31 : 153,875.48 = 63,740.33 : x
2. Step 2: Convert to fraction form
   111,496.31/153,875.48 = 63,740.33/x
3. Step 3: Cross multiply
   111,496.31x = 153,875.48 × 63,740.33
4. Step 4: Simplify right side
   111,496.31x = 9,808,072,786.03
5. Step 5: Solve for x
   x = 9,808,072,786.03/111,496.31
6. Step 6: Final answer
   x = 87,967.69