Finding the Fourth Proportional to 148,892.42, 205,388.37 and 91,491.86

Step by Step Solution

1. Step 1: Write the proportion equation
   148,892.42 : 205,388.37 = 91,491.86 : x
2. Step 2: Convert to fraction form
   148,892.42/205,388.37 = 91,491.86/x
3. Step 3: Cross multiply
   148,892.42x = 205,388.37 × 91,491.86
4. Step 4: Simplify right side
   148,892.42x = 18,791,363,993.67
5. Step 5: Solve for x
   x = 18,791,363,993.67/148,892.42
6. Step 6: Final answer
   x = 126,207.66