Finding the Fourth Proportional to 105,051.33, 144,971.88 and 57,305.68

Step by Step Solution

1. Step 1: Write the proportion equation
   105,051.33 : 144,971.88 = 57,305.68 : x
2. Step 2: Convert to fraction form
   105,051.33/144,971.88 = 57,305.68/x
3. Step 3: Cross multiply
   105,051.33x = 144,971.88 × 57,305.68
4. Step 4: Simplify right side
   105,051.33x = 8,307,712,164.28
5. Step 5: Solve for x
   x = 8,307,712,164.28/105,051.33
6. Step 6: Final answer
   x = 79,082.41