Finding the Fourth Proportional to 110,874.93, 153,007.55 and 63,128.30

Step by Step Solution

1. Step 1: Write the proportion equation
   110,874.93 : 153,007.55 = 63,128.30 : x
2. Step 2: Convert to fraction form
   110,874.93/153,007.55 = 63,128.30/x
3. Step 3: Cross multiply
   110,874.93x = 153,007.55 × 63,128.30
4. Step 4: Simplify right side
   110,874.93x = 9,659,105,674.72
5. Step 5: Solve for x
   x = 9,659,105,674.72/110,874.93
6. Step 6: Final answer
   x = 87,117.13