Finding the Fourth Proportional to 99,282.10, 137,010.35 and 53,960.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,282.10 : 137,010.35 = 53,960.10 : x
2. Step 2: Convert to fraction form
   99,282.10/137,010.35 = 53,960.10/x
3. Step 3: Cross multiply
   99,282.10x = 137,010.35 × 53,960.10
4. Step 4: Simplify right side
   99,282.10x = 7,393,091,605.80
5. Step 5: Solve for x
   x = 7,393,091,605.80/99,282.10
6. Step 6: Final answer
   x = 74,465.50