Finding the Fourth Proportional to 120,051.15, 180,189.72 and 60,929.25

Step by Step Solution

1. Step 1: Write the proportion equation
   120,051.15 : 180,189.72 = 60,929.25 : x
2. Step 2: Convert to fraction form
   120,051.15/180,189.72 = 60,929.25/x
3. Step 3: Cross multiply
   120,051.15x = 180,189.72 × 60,929.25
4. Step 4: Simplify right side
   120,051.15x = 10,978,824,497.31
5. Step 5: Solve for x
   x = 10,978,824,497.31/120,051.15
6. Step 6: Final answer
   x = 91,451.22