Finding the Fourth Proportional to 85,547.94, 128,311.89 and 32,920.62

Step by Step Solution

1. Step 1: Write the proportion equation
   85,547.94 : 128,311.89 = 32,920.62 : x
2. Step 2: Convert to fraction form
   85,547.94/128,311.89 = 32,920.62/x
3. Step 3: Cross multiply
   85,547.94x = 128,311.89 × 32,920.62
4. Step 4: Simplify right side
   85,547.94x = 4,224,106,972.17
5. Step 5: Solve for x
   x = 4,224,106,972.17/85,547.94
6. Step 6: Final answer
   x = 49,377.07