Finding the Fourth Proportional to 120,735.90, 181,128.15 and 101,150.10

Step by Step Solution

1. Step 1: Write the proportion equation
   120,735.90 : 181,128.15 = 101,150.10 : x
2. Step 2: Convert to fraction form
   120,735.90/181,128.15 = 101,150.10/x
3. Step 3: Cross multiply
   120,735.90x = 181,128.15 × 101,150.10
4. Step 4: Simplify right side
   120,735.90x = 18,321,130,485.32
5. Step 5: Solve for x
   x = 18,321,130,485.32/120,735.90
6. Step 6: Final answer
   x = 151,745.51