Finding the Fourth Proportional to 85,685.83, 128,493.27 and 32,368.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,685.83 : 128,493.27 = 32,368.72 : x
2. Step 2: Convert to fraction form
   85,685.83/128,493.27 = 32,368.72/x
3. Step 3: Cross multiply
   85,685.83x = 128,493.27 × 32,368.72
4. Step 4: Simplify right side
   85,685.83x = 4,159,162,036.05
5. Step 5: Solve for x
   x = 4,159,162,036.05/85,685.83
6. Step 6: Final answer
   x = 48,539.67