Finding the Fourth Proportional to 117,681.65, 162,403.83 and 63,970.28

Step by Step Solution

1. Step 1: Write the proportion equation
   117,681.65 : 162,403.83 = 63,970.28 : x
2. Step 2: Convert to fraction form
   117,681.65/162,403.83 = 63,970.28/x
3. Step 3: Cross multiply
   117,681.65x = 162,403.83 × 63,970.28
4. Step 4: Simplify right side
   117,681.65x = 10,389,017,666.15
5. Step 5: Solve for x
   x = 10,389,017,666.15/117,681.65
6. Step 6: Final answer
   x = 88,280.70