Finding the Fourth Proportional to 71,599.72, 107,429.82 and 38,311

Step by Step Solution

1. Step 1: Write the proportion equation
   71,599.72 : 107,429.82 = 38,311 : x
2. Step 2: Convert to fraction form
   71,599.72/107,429.82 = 38,311/x
3. Step 3: Cross multiply
   71,599.72x = 107,429.82 × 38,311
4. Step 4: Simplify right side
   71,599.72x = 4,115,743,834.02
5. Step 5: Solve for x
   x = 4,115,743,834.02/71,599.72
6. Step 6: Final answer
   x = 57,482.68