Finding the Fourth Proportional to 112,241.82, 154,950.86 and 86,690.84

Step by Step Solution

1. Step 1: Write the proportion equation
   112,241.82 : 154,950.86 = 86,690.84 : x
2. Step 2: Convert to fraction form
   112,241.82/154,950.86 = 86,690.84/x
3. Step 3: Cross multiply
   112,241.82x = 154,950.86 × 86,690.84
4. Step 4: Simplify right side
   112,241.82x = 13,432,819,654.10
5. Step 5: Solve for x
   x = 13,432,819,654.10/112,241.82
6. Step 6: Final answer
   x = 119,677.49