Finding the Fourth Proportional to 56,696.96, 78,238.10 and 31,198.37

Step by Step Solution

1. Step 1: Write the proportion equation
   56,696.96 : 78,238.10 = 31,198.37 : x
2. Step 2: Convert to fraction form
   56,696.96/78,238.10 = 31,198.37/x
3. Step 3: Cross multiply
   56,696.96x = 78,238.10 × 31,198.37
4. Step 4: Simplify right side
   56,696.96x = 2,440,900,878.70
5. Step 5: Solve for x
   x = 2,440,900,878.70/56,696.96
6. Step 6: Final answer
   x = 43,051.70