Finding the Fourth Proportional to 99,018.72, 148,530.96 and 25,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,018.72 : 148,530.96 = 25,146.72 : x
2. Step 2: Convert to fraction form
   99,018.72/148,530.96 = 25,146.72/x
3. Step 3: Cross multiply
   99,018.72x = 148,530.96 × 25,146.72
4. Step 4: Simplify right side
   99,018.72x = 3,735,066,462.45
5. Step 5: Solve for x
   x = 3,735,066,462.45/99,018.72
6. Step 6: Final answer
   x = 37,720.81