Finding the Fourth Proportional to 56,766.63, 78,340.37 and 31,616.13

Step by Step Solution

1. Step 1: Write the proportion equation
   56,766.63 : 78,340.37 = 31,616.13 : x
2. Step 2: Convert to fraction form
   56,766.63/78,340.37 = 31,616.13/x
3. Step 3: Cross multiply
   56,766.63x = 78,340.37 × 31,616.13
4. Step 4: Simplify right side
   56,766.63x = 2,476,819,322.17
5. Step 5: Solve for x
   x = 2,476,819,322.17/56,766.63
6. Step 6: Final answer
   x = 43,631.61