Finding the Fourth Proportional to 123,491.04, 170,355 and 78,092.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,491.04 : 170,355 = 78,092.52 : x
2. Step 2: Convert to fraction form
   123,491.04/170,355 = 78,092.52/x
3. Step 3: Cross multiply
   123,491.04x = 170,355 × 78,092.52
4. Step 4: Simplify right side
   123,491.04x = 13,303,451,244.60
5. Step 5: Solve for x
   x = 13,303,451,244.60/123,491.04
6. Step 6: Final answer
   x = 107,728.07