Finding the Fourth Proportional to 345,142.64, 517,736.27 and 108,494.48

Step by Step Solution

1. Step 1: Write the proportion equation
   345,142.64 : 517,736.27 = 108,494.48 : x
2. Step 2: Convert to fraction form
   345,142.64/517,736.27 = 108,494.48/x
3. Step 3: Cross multiply
   345,142.64x = 517,736.27 × 108,494.48
4. Step 4: Simplify right side
   345,142.64x = 56,171,525,073.34
5. Step 5: Solve for x
   x = 56,171,525,073.34/345,142.64
6. Step 6: Final answer
   x = 162,748.73