Finding the Fourth Proportional to 78,541.89, 117,736.69 and 31,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,541.89 : 117,736.69 = 31,141.50 : x
2. Step 2: Convert to fraction form
   78,541.89/117,736.69 = 31,141.50/x
3. Step 3: Cross multiply
   78,541.89x = 117,736.69 × 31,141.50
4. Step 4: Simplify right side
   78,541.89x = 3,666,497,131.64
5. Step 5: Solve for x
   x = 3,666,497,131.64/78,541.89
6. Step 6: Final answer
   x = 46,682.06