Finding the Fourth Proportional to 56,994.05, 78,649.35 and 31,499.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,994.05 : 78,649.35 = 31,499.10 : x
2. Step 2: Convert to fraction form
   56,994.05/78,649.35 = 31,499.10/x
3. Step 3: Cross multiply
   56,994.05x = 78,649.35 × 31,499.10
4. Step 4: Simplify right side
   56,994.05x = 2,477,383,583.09
5. Step 5: Solve for x
   x = 2,477,383,583.09/56,994.05
6. Step 6: Final answer
   x = 43,467.41