Finding the Fourth Proportional to 126,140.72, 174,104.52 and 75,830

Step by Step Solution

1. Step 1: Write the proportion equation
   126,140.72 : 174,104.52 = 75,830 : x
2. Step 2: Convert to fraction form
   126,140.72/174,104.52 = 75,830/x
3. Step 3: Cross multiply
   126,140.72x = 174,104.52 × 75,830
4. Step 4: Simplify right side
   126,140.72x = 13,202,345,751.60
5. Step 5: Solve for x
   x = 13,202,345,751.60/126,140.72
6. Step 6: Final answer
   x = 104,663.63