Finding the Fourth Proportional to 117,213.30, 161,754.78 and 63,498.18

Step by Step Solution

1. Step 1: Write the proportion equation
   117,213.30 : 161,754.78 = 63,498.18 : x
2. Step 2: Convert to fraction form
   117,213.30/161,754.78 = 63,498.18/x
3. Step 3: Cross multiply
   117,213.30x = 161,754.78 × 63,498.18
4. Step 4: Simplify right side
   117,213.30x = 10,271,134,136.30
5. Step 5: Solve for x
   x = 10,271,134,136.30/117,213.30
6. Step 6: Final answer
   x = 87,627.72