Finding the Fourth Proportional to 85,392.86, 127,990.82 and 45,866.94

Step by Step Solution

1. Step 1: Write the proportion equation
   85,392.86 : 127,990.82 = 45,866.94 : x
2. Step 2: Convert to fraction form
   85,392.86/127,990.82 = 45,866.94/x
3. Step 3: Cross multiply
   85,392.86x = 127,990.82 × 45,866.94
4. Step 4: Simplify right side
   85,392.86x = 5,870,547,032.16
5. Step 5: Solve for x
   x = 5,870,547,032.16/85,392.86
6. Step 6: Final answer
   x = 68,747.52