Finding the Fourth Proportional to 99,682.26, 137,564.82 and 54,362.71

Step by Step Solution

1. Step 1: Write the proportion equation
   99,682.26 : 137,564.82 = 54,362.71 : x
2. Step 2: Convert to fraction form
   99,682.26/137,564.82 = 54,362.71/x
3. Step 3: Cross multiply
   99,682.26x = 137,564.82 × 54,362.71
4. Step 4: Simplify right side
   99,682.26x = 7,478,396,415.86
5. Step 5: Solve for x
   x = 7,478,396,415.86/99,682.26
6. Step 6: Final answer
   x = 75,022.34