Finding the Fourth Proportional to 67,680, 93,402.81 and 37,872

Step by Step Solution

1. Step 1: Write the proportion equation
   67,680 : 93,402.81 = 37,872 : x
2. Step 2: Convert to fraction form
   67,680/93,402.81 = 37,872/x
3. Step 3: Cross multiply
   67,680x = 93,402.81 × 37,872
4. Step 4: Simplify right side
   67,680x = 3,537,351,220.32
5. Step 5: Solve for x
   x = 3,537,351,220.32/67,680
6. Step 6: Final answer
   x = 52,265.83