Finding the Fourth Proportional to 105,752.72, 158,578.86 and 61,393.07

Step by Step Solution

1. Step 1: Write the proportion equation
   105,752.72 : 158,578.86 = 61,393.07 : x
2. Step 2: Convert to fraction form
   105,752.72/158,578.86 = 61,393.07/x
3. Step 3: Cross multiply
   105,752.72x = 158,578.86 × 61,393.07
4. Step 4: Simplify right side
   105,752.72x = 9,735,643,052.50
5. Step 5: Solve for x
   x = 9,735,643,052.50/105,752.72
6. Step 6: Final answer
   x = 92,060.45