Finding the Fourth Proportional to 56,769.06, 78,341.32 and 31,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,769.06 : 78,341.32 = 31,618.56 : x
2. Step 2: Convert to fraction form
   56,769.06/78,341.32 = 31,618.56/x
3. Step 3: Cross multiply
   56,769.06x = 78,341.32 × 31,618.56
4. Step 4: Simplify right side
   56,769.06x = 2,477,039,726.90
5. Step 5: Solve for x
   x = 2,477,039,726.90/56,769.06
6. Step 6: Final answer
   x = 43,633.62