Finding the Fourth Proportional to 72,008.64, 99,389.71 and 43,738.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,008.64 : 99,389.71 = 43,738.02 : x
2. Step 2: Convert to fraction form
   72,008.64/99,389.71 = 43,738.02/x
3. Step 3: Cross multiply
   72,008.64x = 99,389.71 × 43,738.02
4. Step 4: Simplify right side
   72,008.64x = 4,347,109,014.43
5. Step 5: Solve for x
   x = 4,347,109,014.43/72,008.64
6. Step 6: Final answer
   x = 60,369.27