Finding the Fourth Proportional to 105,799.56, 146,003.58 and 58,054.92

Step by Step Solution

1. Step 1: Write the proportion equation
   105,799.56 : 146,003.58 = 58,054.92 : x
2. Step 2: Convert to fraction form
   105,799.56/146,003.58 = 58,054.92/x
3. Step 3: Cross multiply
   105,799.56x = 146,003.58 × 58,054.92
4. Step 4: Simplify right side
   105,799.56x = 8,476,226,156.61
5. Step 5: Solve for x
   x = 8,476,226,156.61/105,799.56
6. Step 6: Final answer
   x = 80,115.89