Finding the Fourth Proportional to 61,181.32, 91,623.78 and 31,116.46

Step by Step Solution

1. Step 1: Write the proportion equation
   61,181.32 : 91,623.78 = 31,116.46 : x
2. Step 2: Convert to fraction form
   61,181.32/91,623.78 = 31,116.46/x
3. Step 3: Cross multiply
   61,181.32x = 91,623.78 × 31,116.46
4. Step 4: Simplify right side
   61,181.32x = 2,851,007,685.42
5. Step 5: Solve for x
   x = 2,851,007,685.42/61,181.32
6. Step 6: Final answer
   x = 46,599.32