Finding the Fourth Proportional to 99,856.38, 137,801.60 and 59,624.28

Step by Step Solution

1. Step 1: Write the proportion equation
   99,856.38 : 137,801.60 = 59,624.28 : x
2. Step 2: Convert to fraction form
   99,856.38/137,801.60 = 59,624.28/x
3. Step 3: Cross multiply
   99,856.38x = 137,801.60 × 59,624.28
4. Step 4: Simplify right side
   99,856.38x = 8,216,320,884.73
5. Step 5: Solve for x
   x = 8,216,320,884.73/99,856.38
6. Step 6: Final answer
   x = 82,281.38