Finding the Fourth Proportional to 81,501.89, 122,242.43 and 31,547.84

Step by Step Solution

1. Step 1: Write the proportion equation
   81,501.89 : 122,242.43 = 31,547.84 : x
2. Step 2: Convert to fraction form
   81,501.89/122,242.43 = 31,547.84/x
3. Step 3: Cross multiply
   81,501.89x = 122,242.43 × 31,547.84
4. Step 4: Simplify right side
   81,501.89x = 3,856,484,090.51
5. Step 5: Solve for x
   x = 3,856,484,090.51/81,501.89
6. Step 6: Final answer
   x = 47,317.73