Finding the Fourth Proportional to 149,380.56, 206,155.35 and 91,262.16

Step by Step Solution

1. Step 1: Write the proportion equation
   149,380.56 : 206,155.35 = 91,262.16 : x
2. Step 2: Convert to fraction form
   149,380.56/206,155.35 = 91,262.16/x
3. Step 3: Cross multiply
   149,380.56x = 206,155.35 × 91,262.16
4. Step 4: Simplify right side
   149,380.56x = 18,814,182,536.56
5. Step 5: Solve for x
   x = 18,814,182,536.56/149,380.56
6. Step 6: Final answer
   x = 125,948.00