Finding the Fourth Proportional to 105,922.89, 146,176.38 and 59,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,922.89 : 146,176.38 = 59,978.88 : x
2. Step 2: Convert to fraction form
   105,922.89/146,176.38 = 59,978.88/x
3. Step 3: Cross multiply
   105,922.89x = 146,176.38 × 59,978.88
4. Step 4: Simplify right side
   105,922.89x = 8,767,495,554.85
5. Step 5: Solve for x
   x = 8,767,495,554.85/105,922.89
6. Step 6: Final answer
   x = 82,772.44