Finding the Fourth Proportional to 56,405.82, 84,611.28 and 31,426.98

Step by Step Solution

1. Step 1: Write the proportion equation
   56,405.82 : 84,611.28 = 31,426.98 : x
2. Step 2: Convert to fraction form
   56,405.82/84,611.28 = 31,426.98/x
3. Step 3: Cross multiply
   56,405.82x = 84,611.28 × 31,426.98
4. Step 4: Simplify right side
   56,405.82x = 2,659,077,004.33
5. Step 5: Solve for x
   x = 2,659,077,004.33/56,405.82
6. Step 6: Final answer
   x = 47,141.89