Finding the Fourth Proportional to 99,648.42, 149,499.96 and 49,668.18

Step by Step Solution

1. Step 1: Write the proportion equation
   99,648.42 : 149,499.96 = 49,668.18 : x
2. Step 2: Convert to fraction form
   99,648.42/149,499.96 = 49,668.18/x
3. Step 3: Cross multiply
   99,648.42x = 149,499.96 × 49,668.18
4. Step 4: Simplify right side
   99,648.42x = 7,425,390,923.27
5. Step 5: Solve for x
   x = 7,425,390,923.27/99,648.42
6. Step 6: Final answer
   x = 74,515.89