Finding the Fourth Proportional to 117,926.53, 162,736.51 and 64,210.57

Step by Step Solution

1. Step 1: Write the proportion equation
   117,926.53 : 162,736.51 = 64,210.57 : x
2. Step 2: Convert to fraction form
   117,926.53/162,736.51 = 64,210.57/x
3. Step 3: Cross multiply
   117,926.53x = 162,736.51 × 64,210.57
4. Step 4: Simplify right side
   117,926.53x = 10,449,404,066.91
5. Step 5: Solve for x
   x = 10,449,404,066.91/117,926.53
6. Step 6: Final answer
   x = 88,609.44