Finding the Fourth Proportional to 99,619.94, 137,473.83 and 54,298.33

Step by Step Solution

1. Step 1: Write the proportion equation
   99,619.94 : 137,473.83 = 54,298.33 : x
2. Step 2: Convert to fraction form
   99,619.94/137,473.83 = 54,298.33/x
3. Step 3: Cross multiply
   99,619.94x = 137,473.83 × 54,298.33
4. Step 4: Simplify right side
   99,619.94x = 7,464,599,044.02
5. Step 5: Solve for x
   x = 7,464,599,044.02/99,619.94
6. Step 6: Final answer
   x = 74,930.77