Finding the Fourth Proportional to 79,487.63, 109,700.56 and 45,489.33

Step by Step Solution

1. Step 1: Write the proportion equation
   79,487.63 : 109,700.56 = 45,489.33 : x
2. Step 2: Convert to fraction form
   79,487.63/109,700.56 = 45,489.33/x
3. Step 3: Cross multiply
   79,487.63x = 109,700.56 × 45,489.33
4. Step 4: Simplify right side
   79,487.63x = 4,990,205,031.89
5. Step 5: Solve for x
   x = 4,990,205,031.89/79,487.63
6. Step 6: Final answer
   x = 62,779.64