Finding the Fourth Proportional to 81,162.90, 112,002.69 and 45,353.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,162.90 : 112,002.69 = 45,353.10 : x
2. Step 2: Convert to fraction form
   81,162.90/112,002.69 = 45,353.10/x
3. Step 3: Cross multiply
   81,162.90x = 112,002.69 × 45,353.10
4. Step 4: Simplify right side
   81,162.90x = 5,079,669,199.84
5. Step 5: Solve for x
   x = 5,079,669,199.84/81,162.90
6. Step 6: Final answer
   x = 62,586.10