Finding the Fourth Proportional to 117,869.51, 162,663.59 and 64,158.14

Step by Step Solution

1. Step 1: Write the proportion equation
   117,869.51 : 162,663.59 = 64,158.14 : x
2. Step 2: Convert to fraction form
   117,869.51/162,663.59 = 64,158.14/x
3. Step 3: Cross multiply
   117,869.51x = 162,663.59 × 64,158.14
4. Step 4: Simplify right side
   117,869.51x = 10,436,193,947.18
5. Step 5: Solve for x
   x = 10,436,193,947.18/117,869.51
6. Step 6: Final answer
   x = 88,540.23