Finding the Fourth Proportional to 117,648.02, 162,242.52 and 77,395.88

Step by Step Solution

1. Step 1: Write the proportion equation
   117,648.02 : 162,242.52 = 77,395.88 : x
2. Step 2: Convert to fraction form
   117,648.02/162,242.52 = 77,395.88/x
3. Step 3: Cross multiply
   117,648.02x = 162,242.52 × 77,395.88
4. Step 4: Simplify right side
   117,648.02x = 12,556,902,608.82
5. Step 5: Solve for x
   x = 12,556,902,608.82/117,648.02
6. Step 6: Final answer
   x = 106,732.80