Finding the Fourth Proportional to 291,843.25, 402,743.69 and 157,707.25

Step by Step Solution

1. Step 1: Write the proportion equation
   291,843.25 : 402,743.69 = 157,707.25 : x
2. Step 2: Convert to fraction form
   291,843.25/402,743.69 = 157,707.25/x
3. Step 3: Cross multiply
   291,843.25x = 402,743.69 × 157,707.25
4. Step 4: Simplify right side
   291,843.25x = 63,515,599,016.22
5. Step 5: Solve for x
   x = 63,515,599,016.22/291,843.25
6. Step 6: Final answer
   x = 217,636.01