Finding the Fourth Proportional to 117,885, 162,681.30 and 64,893

Step by Step Solution

1. Step 1: Write the proportion equation
   117,885 : 162,681.30 = 64,893 : x
2. Step 2: Convert to fraction form
   117,885/162,681.30 = 64,893/x
3. Step 3: Cross multiply
   117,885x = 162,681.30 × 64,893
4. Step 4: Simplify right side
   117,885x = 10,556,877,600.90
5. Step 5: Solve for x
   x = 10,556,877,600.90/117,885
6. Step 6: Final answer
   x = 89,552.34