Finding the Fourth Proportional to 117,824.36, 162,598.32 and 64,109.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,824.36 : 162,598.32 = 64,109.78 : x
2. Step 2: Convert to fraction form
   117,824.36/162,598.32 = 64,109.78/x
3. Step 3: Cross multiply
   117,824.36x = 162,598.32 × 64,109.78
4. Step 4: Simplify right side
   117,824.36x = 10,424,142,523.57
5. Step 5: Solve for x
   x = 10,424,142,523.57/117,824.36
6. Step 6: Final answer
   x = 88,471.88