Finding the Fourth Proportional to 211,131.33, 291,358.22 and 120,516.00

Step by Step Solution

1. Step 1: Write the proportion equation
   211,131.33 : 291,358.22 = 120,516.00 : x
2. Step 2: Convert to fraction form
   211,131.33/291,358.22 = 120,516.00/x
3. Step 3: Cross multiply
   211,131.33x = 291,358.22 × 120,516.00
4. Step 4: Simplify right side
   211,131.33x = 35,113,325,784.73
5. Step 5: Solve for x
   x = 35,113,325,784.73/211,131.33
6. Step 6: Final answer
   x = 166,310.36