Finding the Fourth Proportional to 99,928.76, 137,900.00 and 54,605.75

Step by Step Solution

1. Step 1: Write the proportion equation
   99,928.76 : 137,900.00 = 54,605.75 : x
2. Step 2: Convert to fraction form
   99,928.76/137,900.00 = 54,605.75/x
3. Step 3: Cross multiply
   99,928.76x = 137,900.00 × 54,605.75
4. Step 4: Simplify right side
   99,928.76x = 7,530,132,372.01
5. Step 5: Solve for x
   x = 7,530,132,372.01/99,928.76
6. Step 6: Final answer
   x = 75,355.01