Finding the Fourth Proportional to 82.32, 123.52 and 55.99

Step by Step Solution

1. Step 1: Write the proportion equation
   82.32 : 123.52 = 55.99 : x
2. Step 2: Convert to fraction form
   82.32/123.52 = 55.99/x
3. Step 3: Cross multiply
   82.32x = 123.52 × 55.99
4. Step 4: Simplify right side
   82.32x = 6,916.02
5. Step 5: Solve for x
   x = 6,916.02/82.32
6. Step 6: Final answer
   x = 84.02