Finding the Fourth Proportional to 291,833.72, 402,736.69 and 164,509.31

Step by Step Solution

1. Step 1: Write the proportion equation
   291,833.72 : 402,736.69 = 164,509.31 : x
2. Step 2: Convert to fraction form
   291,833.72/402,736.69 = 164,509.31/x
3. Step 3: Cross multiply
   291,833.72x = 402,736.69 × 164,509.31
4. Step 4: Simplify right side
   291,833.72x = 66,253,936,196.06
5. Step 5: Solve for x
   x = 66,253,936,196.06/291,833.72
6. Step 6: Final answer
   x = 227,026.32