Finding the Fourth Proportional to 99,377.48, 149,067.10 and 28,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   99,377.48 : 149,067.10 = 28,300.05 : x
2. Step 2: Convert to fraction form
   99,377.48/149,067.10 = 28,300.05/x
3. Step 3: Cross multiply
   99,377.48x = 149,067.10 × 28,300.05
4. Step 4: Simplify right side
   99,377.48x = 4,218,606,312.60
5. Step 5: Solve for x
   x = 4,218,606,312.60/99,377.48
6. Step 6: Final answer
   x = 42,450.33