Finding the Fourth Proportional to 82,402.38, 113,709.06 and 55,581.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,402.38 : 113,709.06 = 55,581.30 : x
2. Step 2: Convert to fraction form
   82,402.38/113,709.06 = 55,581.30/x
3. Step 3: Cross multiply
   82,402.38x = 113,709.06 × 55,581.30
4. Step 4: Simplify right side
   82,402.38x = 6,320,097,376.58
5. Step 5: Solve for x
   x = 6,320,097,376.58/82,402.38
6. Step 6: Final answer
   x = 76,698.00