Finding the Fourth Proportional to 238,469.32, 357,665.10 and 78,543.73

Step by Step Solution

1. Step 1: Write the proportion equation
   238,469.32 : 357,665.10 = 78,543.73 : x
2. Step 2: Convert to fraction form
   238,469.32/357,665.10 = 78,543.73/x
3. Step 3: Cross multiply
   238,469.32x = 357,665.10 × 78,543.73
4. Step 4: Simplify right side
   238,469.32x = 28,092,351,044.82
5. Step 5: Solve for x
   x = 28,092,351,044.82/238,469.32
6. Step 6: Final answer
   x = 117,802.79