Finding the Fourth Proportional to 99.93, 149.83 and 69.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99.93 : 149.83 = 69.56 : x
2. Step 2: Convert to fraction form
   99.93/149.83 = 69.56/x
3. Step 3: Cross multiply
   99.93x = 149.83 × 69.56
4. Step 4: Simplify right side
   99.93x = 10,421.25
5. Step 5: Solve for x
   x = 10,421.25/99.93
6. Step 6: Final answer
   x = 104.29