Finding the Fourth Proportional to 110,131.88, 151,981.99 and 65,419.88

Step by Step Solution

1. Step 1: Write the proportion equation
   110,131.88 : 151,981.99 = 65,419.88 : x
2. Step 2: Convert to fraction form
   110,131.88/151,981.99 = 65,419.88/x
3. Step 3: Cross multiply
   110,131.88x = 151,981.99 × 65,419.88
4. Step 4: Simplify right side
   110,131.88x = 9,942,642,624.50
5. Step 5: Solve for x
   x = 9,942,642,624.50/110,131.88
6. Step 6: Final answer
   x = 90,279.43