Finding the Fourth Proportional to 72,507.39, 108,756.72 and 43,112.29

Step by Step Solution

1. Step 1: Write the proportion equation
   72,507.39 : 108,756.72 = 43,112.29 : x
2. Step 2: Convert to fraction form
   72,507.39/108,756.72 = 43,112.29/x
3. Step 3: Cross multiply
   72,507.39x = 108,756.72 × 43,112.29
4. Step 4: Simplify right side
   72,507.39x = 4,688,751,252.09
5. Step 5: Solve for x
   x = 4,688,751,252.09/72,507.39
6. Step 6: Final answer
   x = 64,665.84