Finding the Fourth Proportional to 105,714.72, 158,521.86 and 61,355.07

Step by Step Solution

1. Step 1: Write the proportion equation
   105,714.72 : 158,521.86 = 61,355.07 : x
2. Step 2: Convert to fraction form
   105,714.72/158,521.86 = 61,355.07/x
3. Step 3: Cross multiply
   105,714.72x = 158,521.86 × 61,355.07
4. Step 4: Simplify right side
   105,714.72x = 9,726,119,816.83
5. Step 5: Solve for x
   x = 9,726,119,816.83/105,714.72
6. Step 6: Final answer
   x = 92,003.46