Finding the Fourth Proportional to 113,080.80, 169,650.72 and 60,447.36

Step by Step Solution

1. Step 1: Write the proportion equation
   113,080.80 : 169,650.72 = 60,447.36 : x
2. Step 2: Convert to fraction form
   113,080.80/169,650.72 = 60,447.36/x
3. Step 3: Cross multiply
   113,080.80x = 169,650.72 × 60,447.36
4. Step 4: Simplify right side
   113,080.80x = 10,254,938,146.10
5. Step 5: Solve for x
   x = 10,254,938,146.10/113,080.80
6. Step 6: Final answer
   x = 90,686.82