Finding the Fourth Proportional to 99,464.94, 149,057.61 and 84,615.18

Step by Step Solution

1. Step 1: Write the proportion equation
   99,464.94 : 149,057.61 = 84,615.18 : x
2. Step 2: Convert to fraction form
   99,464.94/149,057.61 = 84,615.18/x
3. Step 3: Cross multiply
   99,464.94x = 149,057.61 × 84,615.18
4. Step 4: Simplify right side
   99,464.94x = 12,612,536,500.52
5. Step 5: Solve for x
   x = 12,612,536,500.52/99,464.94
6. Step 6: Final answer
   x = 126,803.84