Finding the Fourth Proportional to 99,019.88, 148,568.72 and 43,577

Step by Step Solution

1. Step 1: Write the proportion equation
   99,019.88 : 148,568.72 = 43,577 : x
2. Step 2: Convert to fraction form
   99,019.88/148,568.72 = 43,577/x
3. Step 3: Cross multiply
   99,019.88x = 148,568.72 × 43,577
4. Step 4: Simplify right side
   99,019.88x = 6,474,179,111.44
5. Step 5: Solve for x
   x = 6,474,179,111.44/99,019.88
6. Step 6: Final answer
   x = 65,382.62