Finding the Fourth Proportional to 123,794.72, 170,877.36 and 72,805.22

Step by Step Solution

1. Step 1: Write the proportion equation
   123,794.72 : 170,877.36 = 72,805.22 : x
2. Step 2: Convert to fraction form
   123,794.72/170,877.36 = 72,805.22/x
3. Step 3: Cross multiply
   123,794.72x = 170,877.36 × 72,805.22
4. Step 4: Simplify right side
   123,794.72x = 12,440,763,787.82
5. Step 5: Solve for x
   x = 12,440,763,787.82/123,794.72
6. Step 6: Final answer
   x = 100,495.11