Finding the Fourth Proportional to 81,308.41, 112,210.29 and 45,498.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,308.41 : 112,210.29 = 45,498.10 : x
2. Step 2: Convert to fraction form
   81,308.41/112,210.29 = 45,498.10/x
3. Step 3: Cross multiply
   81,308.41x = 112,210.29 × 45,498.10
4. Step 4: Simplify right side
   81,308.41x = 5,105,354,995.45
5. Step 5: Solve for x
   x = 5,105,354,995.45/81,308.41
6. Step 6: Final answer
   x = 62,790.00