Finding the Fourth Proportional to 105,014.08, 157,407.72 and 51,743.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,014.08 : 157,407.72 = 51,743.12 : x
2. Step 2: Convert to fraction form
   105,014.08/157,407.72 = 51,743.12/x
3. Step 3: Cross multiply
   105,014.08x = 157,407.72 × 51,743.12
4. Step 4: Simplify right side
   105,014.08x = 8,144,766,544.89
5. Step 5: Solve for x
   x = 8,144,766,544.89/105,014.08
6. Step 6: Final answer
   x = 77,558.80