Finding the Fourth Proportional to 99,447.89, 149,176.76 and 28,381.01

Step by Step Solution

1. Step 1: Write the proportion equation
   99,447.89 : 149,176.76 = 28,381.01 : x
2. Step 2: Convert to fraction form
   99,447.89/149,176.76 = 28,381.01/x
3. Step 3: Cross multiply
   99,447.89x = 149,176.76 × 28,381.01
4. Step 4: Simplify right side
   99,447.89x = 4,233,786,229.54
5. Step 5: Solve for x
   x = 4,233,786,229.54/99,447.89
6. Step 6: Final answer
   x = 42,572.91