Finding the Fourth Proportional to 103,627.16, 155,440.72 and 28,747.30

Step by Step Solution

1. Step 1: Write the proportion equation
   103,627.16 : 155,440.72 = 28,747.30 : x
2. Step 2: Convert to fraction form
   103,627.16/155,440.72 = 28,747.30/x
3. Step 3: Cross multiply
   103,627.16x = 155,440.72 × 28,747.30
4. Step 4: Simplify right side
   103,627.16x = 4,468,501,010.06
5. Step 5: Solve for x
   x = 4,468,501,010.06/103,627.16
6. Step 6: Final answer
   x = 43,120.94