Finding the Fourth Proportional to 191,150.88, 285,294.18 and 187,997.56

Step by Step Solution

1. Step 1: Write the proportion equation
   191,150.88 : 285,294.18 = 187,997.56 : x
2. Step 2: Convert to fraction form
   191,150.88/285,294.18 = 187,997.56/x
3. Step 3: Cross multiply
   191,150.88x = 285,294.18 × 187,997.56
4. Step 4: Simplify right side
   191,150.88x = 53,634,609,722.20
5. Step 5: Solve for x
   x = 53,634,609,722.20/191,150.88
6. Step 6: Final answer
   x = 280,587.83