Finding the Fourth Proportional to 56,769.56, 78,342.01 and 31,619.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,769.56 : 78,342.01 = 31,619.06 : x
2. Step 2: Convert to fraction form
   56,769.56/78,342.01 = 31,619.06/x
3. Step 3: Cross multiply
   56,769.56x = 78,342.01 × 31,619.06
4. Step 4: Simplify right side
   56,769.56x = 2,477,100,714.71
5. Step 5: Solve for x
   x = 2,477,100,714.71/56,769.56
6. Step 6: Final answer
   x = 43,634.31