Finding the Fourth Proportional to 110,870.98, 152,822.21 and 86,629.56

Step by Step Solution

1. Step 1: Write the proportion equation
   110,870.98 : 152,822.21 = 86,629.56 : x
2. Step 2: Convert to fraction form
   110,870.98/152,822.21 = 86,629.56/x
3. Step 3: Cross multiply
   110,870.98x = 152,822.21 × 86,629.56
4. Step 4: Simplify right side
   110,870.98x = 13,238,920,810.53
5. Step 5: Solve for x
   x = 13,238,920,810.53/110,870.98
6. Step 6: Final answer
   x = 119,408.35