Finding the Fourth Proportional to 123,473.68, 170,384.80 and 72,488.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,473.68 : 170,384.80 = 72,488.52 : x
2. Step 2: Convert to fraction form
   123,473.68/170,384.80 = 72,488.52/x
3. Step 3: Cross multiply
   123,473.68x = 170,384.80 × 72,488.52
4. Step 4: Simplify right side
   123,473.68x = 12,350,941,982.50
5. Step 5: Solve for x
   x = 12,350,941,982.50/123,473.68
6. Step 6: Final answer
   x = 100,028.95