Finding the Fourth Proportional to 72,716.37, 109,132.86 and 37,666.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,716.37 : 109,132.86 = 37,666.05 : x
2. Step 2: Convert to fraction form
   72,716.37/109,132.86 = 37,666.05/x
3. Step 3: Cross multiply
   72,716.37x = 109,132.86 × 37,666.05
4. Step 4: Simplify right side
   72,716.37x = 4,110,603,761.40
5. Step 5: Solve for x
   x = 4,110,603,761.40/72,716.37
6. Step 6: Final answer
   x = 56,529.28