Finding the Fourth Proportional to 81,066.35, 111,869.71 and 45,259.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,066.35 : 111,869.71 = 45,259.70 : x
2. Step 2: Convert to fraction form
   81,066.35/111,869.71 = 45,259.70/x
3. Step 3: Cross multiply
   81,066.35x = 111,869.71 × 45,259.70
4. Step 4: Simplify right side
   81,066.35x = 5,063,188,841.19
5. Step 5: Solve for x
   x = 5,063,188,841.19/81,066.35
6. Step 6: Final answer
   x = 62,457.34