Finding the Fourth Proportional to 345,100.56, 517,673.16 and 108,453.12

Step by Step Solution

1. Step 1: Write the proportion equation
   345,100.56 : 517,673.16 = 108,453.12 : x
2. Step 2: Convert to fraction form
   345,100.56/517,673.16 = 108,453.12/x
3. Step 3: Cross multiply
   345,100.56x = 517,673.16 × 108,453.12
4. Step 4: Simplify right side
   345,100.56x = 56,143,269,342.26
5. Step 5: Solve for x
   x = 56,143,269,342.26/345,100.56
6. Step 6: Final answer
   x = 162,686.69