Finding the Fourth Proportional to 53,109.60, 79,491.60 and 41,359.20

Step by Step Solution

1. Step 1: Write the proportion equation
   53,109.60 : 79,491.60 = 41,359.20 : x
2. Step 2: Convert to fraction form
   53,109.60/79,491.60 = 41,359.20/x
3. Step 3: Cross multiply
   53,109.60x = 79,491.60 × 41,359.20
4. Step 4: Simplify right side
   53,109.60x = 3,287,708,982.72
5. Step 5: Solve for x
   x = 3,287,708,982.72/53,109.60
6. Step 6: Final answer
   x = 61,904.23