Finding the Fourth Proportional to 429,100.96, 643,860.52 and 176,457.38

Step by Step Solution

1. Step 1: Write the proportion equation
   429,100.96 : 643,860.52 = 176,457.38 : x
2. Step 2: Convert to fraction form
   429,100.96/643,860.52 = 176,457.38/x
3. Step 3: Cross multiply
   429,100.96x = 643,860.52 × 176,457.38
4. Step 4: Simplify right side
   429,100.96x = 113,613,940,444.64
5. Step 5: Solve for x
   x = 113,613,940,444.64/429,100.96
6. Step 6: Final answer
   x = 264,772.05