Finding the Fourth Proportional to 99,456.05, 149,192.91 and 28,377.35

Step by Step Solution

1. Step 1: Write the proportion equation
   99,456.05 : 149,192.91 = 28,377.35 : x
2. Step 2: Convert to fraction form
   99,456.05/149,192.91 = 28,377.35/x
3. Step 3: Cross multiply
   99,456.05x = 149,192.91 × 28,377.35
4. Step 4: Simplify right side
   99,456.05x = 4,233,699,482.82
5. Step 5: Solve for x
   x = 4,233,699,482.82/99,456.05
6. Step 6: Final answer
   x = 42,568.55