Finding the Fourth Proportional to 61,231.86, 91,886.94 and 39,061.08

Step by Step Solution

1. Step 1: Write the proportion equation
   61,231.86 : 91,886.94 = 39,061.08 : x
2. Step 2: Convert to fraction form
   61,231.86/91,886.94 = 39,061.08/x
3. Step 3: Cross multiply
   61,231.86x = 91,886.94 × 39,061.08
4. Step 4: Simplify right side
   61,231.86x = 3,589,203,114.30
5. Step 5: Solve for x
   x = 3,589,203,114.30/61,231.86
6. Step 6: Final answer
   x = 58,616.59