Finding the Fourth Proportional to 158,669.86, 238,044.18 and 78,745.34

Step by Step Solution

1. Step 1: Write the proportion equation
   158,669.86 : 238,044.18 = 78,745.34 : x
2. Step 2: Convert to fraction form
   158,669.86/238,044.18 = 78,745.34/x
3. Step 3: Cross multiply
   158,669.86x = 238,044.18 × 78,745.34
4. Step 4: Simplify right side
   158,669.86x = 18,744,868,773.57
5. Step 5: Solve for x
   x = 18,744,868,773.57/158,669.86
6. Step 6: Final answer
   x = 118,137.55