Finding the Fourth Proportional to 105,900.13, 146,018.71 and 78,995.93

Step by Step Solution

1. Step 1: Write the proportion equation
   105,900.13 : 146,018.71 = 78,995.93 : x
2. Step 2: Convert to fraction form
   105,900.13/146,018.71 = 78,995.93/x
3. Step 3: Cross multiply
   105,900.13x = 146,018.71 × 78,995.93
4. Step 4: Simplify right side
   105,900.13x = 11,534,883,961.41
5. Step 5: Solve for x
   x = 11,534,883,961.41/105,900.13
6. Step 6: Final answer
   x = 108,922.29