Finding the Fourth Proportional to 81,588.57, 112,591.72 and 45,778.47

Step by Step Solution

1. Step 1: Write the proportion equation
   81,588.57 : 112,591.72 = 45,778.47 : x
2. Step 2: Convert to fraction form
   81,588.57/112,591.72 = 45,778.47/x
3. Step 3: Cross multiply
   81,588.57x = 112,591.72 × 45,778.47
4. Step 4: Simplify right side
   81,588.57x = 5,154,276,676.27
5. Step 5: Solve for x
   x = 5,154,276,676.27/81,588.57
6. Step 6: Final answer
   x = 63,174.00