Finding the Fourth Proportional to 118,088.51, 162,960.89 and 64,372.39

Step by Step Solution

1. Step 1: Write the proportion equation
   118,088.51 : 162,960.89 = 64,372.39 : x
2. Step 2: Convert to fraction form
   118,088.51/162,960.89 = 64,372.39/x
3. Step 3: Cross multiply
   118,088.51x = 162,960.89 × 64,372.39
4. Step 4: Simplify right side
   118,088.51x = 10,490,181,236.56
5. Step 5: Solve for x
   x = 10,490,181,236.56/118,088.51
6. Step 6: Final answer
   x = 88,833.21