Finding the Fourth Proportional to 98,997.57, 148,493.91 and 28,877.49

Step by Step Solution

1. Step 1: Write the proportion equation
   98,997.57 : 148,493.91 = 28,877.49 : x
2. Step 2: Convert to fraction form
   98,997.57/148,493.91 = 28,877.49/x
3. Step 3: Cross multiply
   98,997.57x = 148,493.91 × 28,877.49
4. Step 4: Simplify right side
   98,997.57x = 4,288,131,401.09
5. Step 5: Solve for x
   x = 4,288,131,401.09/98,997.57
6. Step 6: Final answer
   x = 43,315.52