Finding the Fourth Proportional to 155,036.65, 232,500.30 and 55,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   155,036.65 : 232,500.30 = 55,200.10 : x
2. Step 2: Convert to fraction form
   155,036.65/232,500.30 = 55,200.10/x
3. Step 3: Cross multiply
   155,036.65x = 232,500.30 × 55,200.10
4. Step 4: Simplify right side
   155,036.65x = 12,834,039,810.03
5. Step 5: Solve for x
   x = 12,834,039,810.03/155,036.65
6. Step 6: Final answer
   x = 82,780.68