Finding the Fourth Proportional to 99,385.89, 149,048.49 and 28,314.33

Step by Step Solution

1. Step 1: Write the proportion equation
   99,385.89 : 149,048.49 = 28,314.33 : x
2. Step 2: Convert to fraction form
   99,385.89/149,048.49 = 28,314.33/x
3. Step 3: Cross multiply
   99,385.89x = 149,048.49 × 28,314.33
4. Step 4: Simplify right side
   99,385.89x = 4,220,208,131.86
5. Step 5: Solve for x
   x = 4,220,208,131.86/99,385.89
6. Step 6: Final answer
   x = 42,462.85