Finding the Fourth Proportional to 123,377.31, 170,250.44 and 72,384.71

Step by Step Solution

1. Step 1: Write the proportion equation
   123,377.31 : 170,250.44 = 72,384.71 : x
2. Step 2: Convert to fraction form
   123,377.31/170,250.44 = 72,384.71/x
3. Step 3: Cross multiply
   123,377.31x = 170,250.44 × 72,384.71
4. Step 4: Simplify right side
   123,377.31x = 12,323,527,513.60
5. Step 5: Solve for x
   x = 12,323,527,513.60/123,377.31
6. Step 6: Final answer
   x = 99,884.88