Finding the Fourth Proportional to 111,128.43, 153,355.68 and 63,382.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,128.43 : 153,355.68 = 63,382.56 : x
2. Step 2: Convert to fraction form
   111,128.43/153,355.68 = 63,382.56/x
3. Step 3: Cross multiply
   111,128.43x = 153,355.68 × 63,382.56
4. Step 4: Simplify right side
   111,128.43x = 9,720,075,588.94
5. Step 5: Solve for x
   x = 9,720,075,588.94/111,128.43
6. Step 6: Final answer
   x = 87,467.05