Finding the Fourth Proportional to 123,089.58, 169,858.80 and 69,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,089.58 : 169,858.80 = 69,385.50 : x
2. Step 2: Convert to fraction form
   123,089.58/169,858.80 = 69,385.50/x
3. Step 3: Cross multiply
   123,089.58x = 169,858.80 × 69,385.50
4. Step 4: Simplify right side
   123,089.58x = 11,785,737,767.40
5. Step 5: Solve for x
   x = 11,785,737,767.40/123,089.58
6. Step 6: Final answer
   x = 95,749.27