Finding the Fourth Proportional to 123,219.50, 170,038.76 and 69,502.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,219.50 : 170,038.76 = 69,502.50 : x
2. Step 2: Convert to fraction form
   123,219.50/170,038.76 = 69,502.50/x
3. Step 3: Cross multiply
   123,219.50x = 170,038.76 × 69,502.50
4. Step 4: Simplify right side
   123,219.50x = 11,818,118,569.39
5. Step 5: Solve for x
   x = 11,818,118,569.39/123,219.50
6. Step 6: Final answer
   x = 95,911.11