Finding the Fourth Proportional to 215,803, 297,804.72 and 120,315.52

Step by Step Solution

1. Step 1: Write the proportion equation
   215,803 : 297,804.72 = 120,315.52 : x
2. Step 2: Convert to fraction form
   215,803/297,804.72 = 120,315.52/x
3. Step 3: Cross multiply
   215,803x = 297,804.72 × 120,315.52
4. Step 4: Simplify right side
   215,803x = 35,830,529,745.25
5. Step 5: Solve for x
   x = 35,830,529,745.25/215,803
6. Step 6: Final answer
   x = 166,033.51