Finding the Fourth Proportional to 293,654.96, 405,323.88 and 172,835

Step by Step Solution

1. Step 1: Write the proportion equation
   293,654.96 : 405,323.88 = 172,835 : x
2. Step 2: Convert to fraction form
   293,654.96/405,323.88 = 172,835/x
3. Step 3: Cross multiply
   293,654.96x = 405,323.88 × 172,835
4. Step 4: Simplify right side
   293,654.96x = 70,054,152,799.80
5. Step 5: Solve for x
   x = 70,054,152,799.80/293,654.96
6. Step 6: Final answer
   x = 238,559.41