Finding the Fourth Proportional to 56,735.56, 78,294.96 and 31,591

Step by Step Solution

1. Step 1: Write the proportion equation
   56,735.56 : 78,294.96 = 31,591 : x
2. Step 2: Convert to fraction form
   56,735.56/78,294.96 = 31,591/x
3. Step 3: Cross multiply
   56,735.56x = 78,294.96 × 31,591
4. Step 4: Simplify right side
   56,735.56x = 2,473,416,081.36
5. Step 5: Solve for x
   x = 2,473,416,081.36/56,735.56
6. Step 6: Final answer
   x = 43,595.52