Finding the Fourth Proportional to 117,685.83, 162,407.55 and 63,971.01

Step by Step Solution

1. Step 1: Write the proportion equation
   117,685.83 : 162,407.55 = 63,971.01 : x
2. Step 2: Convert to fraction form
   117,685.83/162,407.55 = 63,971.01/x
3. Step 3: Cross multiply
   117,685.83x = 162,407.55 × 63,971.01
4. Step 4: Simplify right side
   117,685.83x = 10,389,375,005.13
5. Step 5: Solve for x
   x = 10,389,375,005.13/117,685.83
6. Step 6: Final answer
   x = 88,280.59