Finding the Fourth Proportional to 81,498.41, 112,467.72 and 45,688.41

Step by Step Solution

1. Step 1: Write the proportion equation
   81,498.41 : 112,467.72 = 45,688.41 : x
2. Step 2: Convert to fraction form
   81,498.41/112,467.72 = 45,688.41/x
3. Step 3: Cross multiply
   81,498.41x = 112,467.72 × 45,688.41
4. Step 4: Simplify right side
   81,498.41x = 5,138,471,303.13
5. Step 5: Solve for x
   x = 5,138,471,303.13/81,498.41
6. Step 6: Final answer
   x = 63,049.96