Finding the Fourth Proportional to 99,448.89, 149,178.26 and 28,382.01

Step by Step Solution

1. Step 1: Write the proportion equation
   99,448.89 : 149,178.26 = 28,382.01 : x
2. Step 2: Convert to fraction form
   99,448.89/149,178.26 = 28,382.01/x
3. Step 3: Cross multiply
   99,448.89x = 149,178.26 × 28,382.01
4. Step 4: Simplify right side
   99,448.89x = 4,233,978,867.10
5. Step 5: Solve for x
   x = 4,233,978,867.10/99,448.89
6. Step 6: Final answer
   x = 42,574.42