Finding the Fourth Proportional to 123,059.34, 169,828.11 and 75,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,059.34 : 169,828.11 = 75,298.50 : x
2. Step 2: Convert to fraction form
   123,059.34/169,828.11 = 75,298.50/x
3. Step 3: Cross multiply
   123,059.34x = 169,828.11 × 75,298.50
4. Step 4: Simplify right side
   123,059.34x = 12,787,801,940.84
5. Step 5: Solve for x
   x = 12,787,801,940.84/123,059.34
6. Step 6: Final answer
   x = 103,915.74