Finding the Fourth Proportional to 108,321.98, 149,521.91 and 74,442.61

Step by Step Solution

1. Step 1: Write the proportion equation
   108,321.98 : 149,521.91 = 74,442.61 : x
2. Step 2: Convert to fraction form
   108,321.98/149,521.91 = 74,442.61/x
3. Step 3: Cross multiply
   108,321.98x = 149,521.91 × 74,442.61
4. Step 4: Simplify right side
   108,321.98x = 11,130,801,047.27
5. Step 5: Solve for x
   x = 11,130,801,047.27/108,321.98
6. Step 6: Final answer
   x = 102,756.63