Finding the Fourth Proportional to 99,529.72, 137,379.24 and 65,563

Step by Step Solution

1. Step 1: Write the proportion equation
   99,529.72 : 137,379.24 = 65,563 : x
2. Step 2: Convert to fraction form
   99,529.72/137,379.24 = 65,563/x
3. Step 3: Cross multiply
   99,529.72x = 137,379.24 × 65,563
4. Step 4: Simplify right side
   99,529.72x = 9,006,995,112.12
5. Step 5: Solve for x
   x = 9,006,995,112.12/99,529.72
6. Step 6: Final answer
   x = 90,495.53