Finding the Fourth Proportional to 81,492.80, 112,483.96 and 53,202.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,492.80 : 112,483.96 = 53,202.72 : x
2. Step 2: Convert to fraction form
   81,492.80/112,483.96 = 53,202.72/x
3. Step 3: Cross multiply
   81,492.80x = 112,483.96 × 53,202.72
4. Step 4: Simplify right side
   81,492.80x = 5,984,452,628.37
5. Step 5: Solve for x
   x = 5,984,452,628.37/81,492.80
6. Step 6: Final answer
   x = 73,435.35