Finding the Fourth Proportional to 99,412.29, 149,061.96 and 67,860.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,412.29 : 149,061.96 = 67,860.56 : x
2. Step 2: Convert to fraction form
   99,412.29/149,061.96 = 67,860.56/x
3. Step 3: Cross multiply
   99,412.29x = 149,061.96 × 67,860.56
4. Step 4: Simplify right side
   99,412.29x = 10,115,428,452.95
5. Step 5: Solve for x
   x = 10,115,428,452.95/99,412.29
6. Step 6: Final answer
   x = 101,752.29