Finding the Fourth Proportional to 71,905.59, 99,229.82 and 40,073.81

Step by Step Solution

1. Step 1: Write the proportion equation
   71,905.59 : 99,229.82 = 40,073.81 : x
2. Step 2: Convert to fraction form
   71,905.59/99,229.82 = 40,073.81/x
3. Step 3: Cross multiply
   71,905.59x = 99,229.82 × 40,073.81
4. Step 4: Simplify right side
   71,905.59x = 3,976,516,256.50
5. Step 5: Solve for x
   x = 3,976,516,256.50/71,905.59
6. Step 6: Final answer
   x = 55,301.91