Finding the Fourth Proportional to 72,620.84, 108,876 and 37,538.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,620.84 : 108,876 = 37,538.12 : x
2. Step 2: Convert to fraction form
   72,620.84/108,876 = 37,538.12/x
3. Step 3: Cross multiply
   72,620.84x = 108,876 × 37,538.12
4. Step 4: Simplify right side
   72,620.84x = 4,087,000,353.12
5. Step 5: Solve for x
   x = 4,087,000,353.12/72,620.84
6. Step 6: Final answer
   x = 56,278.62