Finding the Fourth Proportional to 99,479.25, 137,281.41 and 54,767.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,479.25 : 137,281.41 = 54,767.25 : x
2. Step 2: Convert to fraction form
   99,479.25/137,281.41 = 54,767.25/x
3. Step 3: Cross multiply
   99,479.25x = 137,281.41 × 54,767.25
4. Step 4: Simplify right side
   99,479.25x = 7,518,525,301.82
5. Step 5: Solve for x
   x = 7,518,525,301.82/99,479.25
6. Step 6: Final answer
   x = 75,578.83