Finding the Fourth Proportional to 85,527.30, 117,950.72 and 55,280.82

Step by Step Solution

1. Step 1: Write the proportion equation
   85,527.30 : 117,950.72 = 55,280.82 : x
2. Step 2: Convert to fraction form
   85,527.30/117,950.72 = 55,280.82/x
3. Step 3: Cross multiply
   85,527.30x = 117,950.72 × 55,280.82
4. Step 4: Simplify right side
   85,527.30x = 6,520,412,521.19
5. Step 5: Solve for x
   x = 6,520,412,521.19/85,527.30
6. Step 6: Final answer
   x = 76,237.79