Finding the Fourth Proportional to 117,870.53, 162,664.77 and 64,159.02

Step by Step Solution

1. Step 1: Write the proportion equation
   117,870.53 : 162,664.77 = 64,159.02 : x
2. Step 2: Convert to fraction form
   117,870.53/162,664.77 = 64,159.02/x
3. Step 3: Cross multiply
   117,870.53x = 162,664.77 × 64,159.02
4. Step 4: Simplify right side
   117,870.53x = 10,436,412,231.73
5. Step 5: Solve for x
   x = 10,436,412,231.73/117,870.53
6. Step 6: Final answer
   x = 88,541.32