Finding the Fourth Proportional to 106,128.84, 146,374.77 and 65,819.82

Step by Step Solution

1. Step 1: Write the proportion equation
   106,128.84 : 146,374.77 = 65,819.82 : x
2. Step 2: Convert to fraction form
   106,128.84/146,374.77 = 65,819.82/x
3. Step 3: Cross multiply
   106,128.84x = 146,374.77 × 65,819.82
4. Step 4: Simplify right side
   106,128.84x = 9,634,361,013.94
5. Step 5: Solve for x
   x = 9,634,361,013.94/106,128.84
6. Step 6: Final answer
   x = 90,779.86