Finding the Fourth Proportional to 144,773.31, 217,106.61 and 49,979.28

Step by Step Solution

1. Step 1: Write the proportion equation
   144,773.31 : 217,106.61 = 49,979.28 : x
2. Step 2: Convert to fraction form
   144,773.31/217,106.61 = 49,979.28/x
3. Step 3: Cross multiply
   144,773.31x = 217,106.61 × 49,979.28
4. Step 4: Simplify right side
   144,773.31x = 10,850,832,051.04
5. Step 5: Solve for x
   x = 10,850,832,051.04/144,773.31
6. Step 6: Final answer
   x = 74,950.50