Finding the Fourth Proportional to 105,066.72, 144,970.38 and 61,450.92

Step by Step Solution

1. Step 1: Write the proportion equation
   105,066.72 : 144,970.38 = 61,450.92 : x
2. Step 2: Convert to fraction form
   105,066.72/144,970.38 = 61,450.92/x
3. Step 3: Cross multiply
   105,066.72x = 144,970.38 × 61,450.92
4. Step 4: Simplify right side
   105,066.72x = 8,908,563,223.75
5. Step 5: Solve for x
   x = 8,908,563,223.75/105,066.72
6. Step 6: Final answer
   x = 84,789.58