Finding the Fourth Proportional to 57,105.14, 78,803.89 and 31,610.05

Step by Step Solution

1. Step 1: Write the proportion equation
   57,105.14 : 78,803.89 = 31,610.05 : x
2. Step 2: Convert to fraction form
   57,105.14/78,803.89 = 31,610.05/x
3. Step 3: Cross multiply
   57,105.14x = 78,803.89 × 31,610.05
4. Step 4: Simplify right side
   57,105.14x = 2,490,994,627.06
5. Step 5: Solve for x
   x = 2,490,994,627.06/57,105.14
6. Step 6: Final answer
   x = 43,621.20