Finding the Fourth Proportional to 149,758.27, 206,667.25 and 81,776.99

Step by Step Solution

1. Step 1: Write the proportion equation
   149,758.27 : 206,667.25 = 81,776.99 : x
2. Step 2: Convert to fraction form
   149,758.27/206,667.25 = 81,776.99/x
3. Step 3: Cross multiply
   149,758.27x = 206,667.25 × 81,776.99
4. Step 4: Simplify right side
   149,758.27x = 16,900,625,948.80
5. Step 5: Solve for x
   x = 16,900,625,948.80/149,758.27
6. Step 6: Final answer
   x = 112,852.71