Finding the Fourth Proportional to 72,160.38, 107,968.29 and 42,594.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,160.38 : 107,968.29 = 42,594.30 : x
2. Step 2: Convert to fraction form
   72,160.38/107,968.29 = 42,594.30/x
3. Step 3: Cross multiply
   72,160.38x = 107,968.29 × 42,594.30
4. Step 4: Simplify right side
   72,160.38x = 4,598,833,734.75
5. Step 5: Solve for x
   x = 4,598,833,734.75/72,160.38
6. Step 6: Final answer
   x = 63,730.73