Finding the Fourth Proportional to 181,771.20, 250,841.88 and 105,300.72

Step by Step Solution

1. Step 1: Write the proportion equation
   181,771.20 : 250,841.88 = 105,300.72 : x
2. Step 2: Convert to fraction form
   181,771.20/250,841.88 = 105,300.72/x
3. Step 3: Cross multiply
   181,771.20x = 250,841.88 × 105,300.72
4. Step 4: Simplify right side
   181,771.20x = 26,413,830,570.15
5. Step 5: Solve for x
   x = 26,413,830,570.15/181,771.20
6. Step 6: Final answer
   x = 145,313.62