Finding the Fourth Proportional to 99,460.43, 137,258.28 and 54,141.33

Step by Step Solution

1. Step 1: Write the proportion equation
   99,460.43 : 137,258.28 = 54,141.33 : x
2. Step 2: Convert to fraction form
   99,460.43/137,258.28 = 54,141.33/x
3. Step 3: Cross multiply
   99,460.43x = 137,258.28 × 54,141.33
4. Step 4: Simplify right side
   99,460.43x = 7,431,345,832.71
5. Step 5: Solve for x
   x = 7,431,345,832.71/99,460.43
6. Step 6: Final answer
   x = 74,716.61