Finding the Fourth Proportional to 56,536.87, 78,017.83 and 31,384.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,536.87 : 78,017.83 = 31,384.75 : x
2. Step 2: Convert to fraction form
   56,536.87/78,017.83 = 31,384.75/x
3. Step 3: Cross multiply
   56,536.87x = 78,017.83 × 31,384.75
4. Step 4: Simplify right side
   56,536.87x = 2,448,570,090.09
5. Step 5: Solve for x
   x = 2,448,570,090.09/56,536.87
6. Step 6: Final answer
   x = 43,309.26