Finding the Fourth Proportional to 56,880.56, 78,496.84 and 31,729.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,880.56 : 78,496.84 = 31,729.52 : x
2. Step 2: Convert to fraction form
   56,880.56/78,496.84 = 31,729.52/x
3. Step 3: Cross multiply
   56,880.56x = 78,496.84 × 31,729.52
4. Step 4: Simplify right side
   56,880.56x = 2,490,667,054.72
5. Step 5: Solve for x
   x = 2,490,667,054.72/56,880.56
6. Step 6: Final answer
   x = 43,787.67