Finding the Fourth Proportional to 82,428.48, 113,753.28 and 48,894.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,428.48 : 113,753.28 = 48,894.72 : x
2. Step 2: Convert to fraction form
   82,428.48/113,753.28 = 48,894.72/x
3. Step 3: Cross multiply
   82,428.48x = 113,753.28 × 48,894.72
4. Step 4: Simplify right side
   82,428.48x = 5,561,934,774.68
5. Step 5: Solve for x
   x = 5,561,934,774.68/82,428.48
6. Step 6: Final answer
   x = 67,475.89