Finding the Fourth Proportional to 120,820.71, 181,296.27 and 70,998.15

Step by Step Solution

1. Step 1: Write the proportion equation
   120,820.71 : 181,296.27 = 70,998.15 : x
2. Step 2: Convert to fraction form
   120,820.71/181,296.27 = 70,998.15/x
3. Step 3: Cross multiply
   120,820.71x = 181,296.27 × 70,998.15
4. Step 4: Simplify right side
   120,820.71x = 12,871,699,771.90
5. Step 5: Solve for x
   x = 12,871,699,771.90/120,820.71
6. Step 6: Final answer
   x = 106,535.54