Finding the Fourth Proportional to 81,054.18, 111,852.90 and 45,247.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,054.18 : 111,852.90 = 45,247.50 : x
2. Step 2: Convert to fraction form
   81,054.18/111,852.90 = 45,247.50/x
3. Step 3: Cross multiply
   81,054.18x = 111,852.90 × 45,247.50
4. Step 4: Simplify right side
   81,054.18x = 5,061,064,092.75
5. Step 5: Solve for x
   x = 5,061,064,092.75/81,054.18
6. Step 6: Final answer
   x = 62,440.51