Finding the Fourth Proportional to 407,547.05, 611,123.94 and 170,826.17

Step by Step Solution

1. Step 1: Write the proportion equation
   407,547.05 : 611,123.94 = 170,826.17 : x
2. Step 2: Convert to fraction form
   407,547.05/611,123.94 = 170,826.17/x
3. Step 3: Cross multiply
   407,547.05x = 611,123.94 × 170,826.17
4. Step 4: Simplify right side
   407,547.05x = 104,395,959,009.89
5. Step 5: Solve for x
   x = 104,395,959,009.89/407,547.05
6. Step 6: Final answer
   x = 256,156.83