Finding the Fourth Proportional to 120,053.15, 180,192.72 and 60,931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   120,053.15 : 180,192.72 = 60,931.25 : x
2. Step 2: Convert to fraction form
   120,053.15/180,192.72 = 60,931.25/x
3. Step 3: Cross multiply
   120,053.15x = 180,192.72 × 60,931.25
4. Step 4: Simplify right side
   120,053.15x = 10,979,367,670.50
5. Step 5: Solve for x
   x = 10,979,367,670.50/120,053.15
6. Step 6: Final answer
   x = 91,454.22