Finding the Fourth Proportional to 67,680, 93,440.76 and 43,490.76

Step by Step Solution

1. Step 1: Write the proportion equation
   67,680 : 93,440.76 = 43,490.76 : x
2. Step 2: Convert to fraction form
   67,680/93,440.76 = 43,490.76/x
3. Step 3: Cross multiply
   67,680x = 93,440.76 × 43,490.76
4. Step 4: Simplify right side
   67,680x = 4,063,809,667.38
5. Step 5: Solve for x
   x = 4,063,809,667.38/67,680
6. Step 6: Final answer
   x = 60,044.47