Finding the Fourth Proportional to 210,899.48, 291,058.52 and 120,283.83

Step by Step Solution

1. Step 1: Write the proportion equation
   210,899.48 : 291,058.52 = 120,283.83 : x
2. Step 2: Convert to fraction form
   210,899.48/291,058.52 = 120,283.83/x
3. Step 3: Cross multiply
   210,899.48x = 291,058.52 × 120,283.83
4. Step 4: Simplify right side
   210,899.48x = 35,009,632,938.31
5. Step 5: Solve for x
   x = 35,009,632,938.31/210,899.48
6. Step 6: Final answer
   x = 166,001.52