Finding the Fourth Proportional to 309,426.68, 464,146.50 and 99,064.01

Step by Step Solution

1. Step 1: Write the proportion equation
   309,426.68 : 464,146.50 = 99,064.01 : x
2. Step 2: Convert to fraction form
   309,426.68/464,146.50 = 99,064.01/x
3. Step 3: Cross multiply
   309,426.68x = 464,146.50 × 99,064.01
4. Step 4: Simplify right side
   309,426.68x = 45,980,215,049.32
5. Step 5: Solve for x
   x = 45,980,215,049.32/309,426.68
6. Step 6: Final answer
   x = 148,598.09