Finding the Fourth Proportional to 72,742.58, 109,115.31 and 37,659.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,742.58 : 109,115.31 = 37,659.38 : x
2. Step 2: Convert to fraction form
   72,742.58/109,115.31 = 37,659.38/x
3. Step 3: Cross multiply
   72,742.58x = 109,115.31 × 37,659.38
4. Step 4: Simplify right side
   72,742.58x = 4,109,214,923.11
5. Step 5: Solve for x
   x = 4,109,214,923.11/72,742.58
6. Step 6: Final answer
   x = 56,489.82