Finding the Fourth Proportional to 117,688.50, 162,410.70 and 63,973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,688.50 : 162,410.70 = 63,973.50 : x
2. Step 2: Convert to fraction form
   117,688.50/162,410.70 = 63,973.50/x
3. Step 3: Cross multiply
   117,688.50x = 162,410.70 × 63,973.50
4. Step 4: Simplify right side
   117,688.50x = 10,389,980,916.45
5. Step 5: Solve for x
   x = 10,389,980,916.45/117,688.50
6. Step 6: Final answer
   x = 88,283.74