Finding the Fourth Proportional to 99,649.56, 149,498.58 and 28,573.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,649.56 : 149,498.58 = 28,573.56 : x
2. Step 2: Convert to fraction form
   99,649.56/149,498.58 = 28,573.56/x
3. Step 3: Cross multiply
   99,649.56x = 149,498.58 × 28,573.56
4. Step 4: Simplify right side
   99,649.56x = 4,271,706,645.54
5. Step 5: Solve for x
   x = 4,271,706,645.54/99,649.56
6. Step 6: Final answer
   x = 42,867.29