Finding the Fourth Proportional to 625,499.82, 938,329.31 and 170,100.61

Step by Step Solution

1. Step 1: Write the proportion equation
   625,499.82 : 938,329.31 = 170,100.61 : x
2. Step 2: Convert to fraction form
   625,499.82/938,329.31 = 170,100.61/x
3. Step 3: Cross multiply
   625,499.82x = 938,329.31 × 170,100.61
4. Step 4: Simplify right side
   625,499.82x = 159,610,386,091.31
5. Step 5: Solve for x
   x = 159,610,386,091.31/625,499.82
6. Step 6: Final answer
   x = 255,172.55