Finding the Fourth Proportional to 105,079.88, 157,457.82 and 51,710.60

Step by Step Solution

1. Step 1: Write the proportion equation
   105,079.88 : 157,457.82 = 51,710.60 : x
2. Step 2: Convert to fraction form
   105,079.88/157,457.82 = 51,710.60/x
3. Step 3: Cross multiply
   105,079.88x = 157,457.82 × 51,710.60
4. Step 4: Simplify right side
   105,079.88x = 8,142,238,346.89
5. Step 5: Solve for x
   x = 8,142,238,346.89/105,079.88
6. Step 6: Final answer
   x = 77,486.18