Finding the Fourth Proportional to 215,575.83, 297,503.69 and 120,082.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,575.83 : 297,503.69 = 120,082.50 : x
2. Step 2: Convert to fraction form
   215,575.83/297,503.69 = 120,082.50/x
3. Step 3: Cross multiply
   215,575.83x = 297,503.69 × 120,082.50
4. Step 4: Simplify right side
   215,575.83x = 35,724,986,254.01
5. Step 5: Solve for x
   x = 35,724,986,254.01/215,575.83
6. Step 6: Final answer
   x = 165,718.89