Finding the Fourth Proportional to 99,377.98, 149,067.85 and 28,300.55

Step by Step Solution

1. Step 1: Write the proportion equation
   99,377.98 : 149,067.85 = 28,300.55 : x
2. Step 2: Convert to fraction form
   99,377.98/149,067.85 = 28,300.55/x
3. Step 3: Cross multiply
   99,377.98x = 149,067.85 × 28,300.55
4. Step 4: Simplify right side
   99,377.98x = 4,218,702,142.32
5. Step 5: Solve for x
   x = 4,218,702,142.32/99,377.98
6. Step 6: Final answer
   x = 42,451.08