Finding the Fourth Proportional to 151,031.06, 208,214.37 and 120,507.83

Step by Step Solution

1. Step 1: Write the proportion equation
   151,031.06 : 208,214.37 = 120,507.83 : x
2. Step 2: Convert to fraction form
   151,031.06/208,214.37 = 120,507.83/x
3. Step 3: Cross multiply
   151,031.06x = 208,214.37 × 120,507.83
4. Step 4: Simplify right side
   151,031.06x = 25,091,460,862.45
5. Step 5: Solve for x
   x = 25,091,460,862.45/151,031.06
6. Step 6: Final answer
   x = 166,134.45