Finding the Fourth Proportional to 162,915.83, 244,407.45 and 78,734.57

Step by Step Solution

1. Step 1: Write the proportion equation
   162,915.83 : 244,407.45 = 78,734.57 : x
2. Step 2: Convert to fraction form
   162,915.83/244,407.45 = 78,734.57/x
3. Step 3: Cross multiply
   162,915.83x = 244,407.45 × 78,734.57
4. Step 4: Simplify right side
   162,915.83x = 19,243,315,480.55
5. Step 5: Solve for x
   x = 19,243,315,480.55/162,915.83
6. Step 6: Final answer
   x = 118,118.14