Finding the Fourth Proportional to 56,995.05, 78,650.72 and 31,500.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,995.05 : 78,650.72 = 31,500.10 : x
2. Step 2: Convert to fraction form
   56,995.05/78,650.72 = 31,500.10/x
3. Step 3: Cross multiply
   56,995.05x = 78,650.72 × 31,500.10
4. Step 4: Simplify right side
   56,995.05x = 2,477,505,545.07
5. Step 5: Solve for x
   x = 2,477,505,545.07/56,995.05
6. Step 6: Final answer
   x = 43,468.78