Finding the Fourth Proportional to 99,099.78, 148,648.16 and 68,676.84

Step by Step Solution

1. Step 1: Write the proportion equation
   99,099.78 : 148,648.16 = 68,676.84 : x
2. Step 2: Convert to fraction form
   99,099.78/148,648.16 = 68,676.84/x
3. Step 3: Cross multiply
   99,099.78x = 148,648.16 × 68,676.84
4. Step 4: Simplify right side
   99,099.78x = 10,208,685,900.61
5. Step 5: Solve for x
   x = 10,208,685,900.61/99,099.78
6. Step 6: Final answer
   x = 103,014.21