Finding the Fourth Proportional to 81,654.33, 112,688.55 and 45,360.03

Step by Step Solution

1. Step 1: Write the proportion equation
   81,654.33 : 112,688.55 = 45,360.03 : x
2. Step 2: Convert to fraction form
   81,654.33/112,688.55 = 45,360.03/x
3. Step 3: Cross multiply
   81,654.33x = 112,688.55 × 45,360.03
4. Step 4: Simplify right side
   81,654.33x = 5,111,556,008.66
5. Step 5: Solve for x
   x = 5,111,556,008.66/81,654.33
6. Step 6: Final answer
   x = 62,599.94