Finding the Fourth Proportional to 118,123.38, 163,009.87 and 64,408.26

Step by Step Solution

1. Step 1: Write the proportion equation
   118,123.38 : 163,009.87 = 64,408.26 : x
2. Step 2: Convert to fraction form
   118,123.38/163,009.87 = 64,408.26/x
3. Step 3: Cross multiply
   118,123.38x = 163,009.87 × 64,408.26
4. Step 4: Simplify right side
   118,123.38x = 10,499,182,539.79
5. Step 5: Solve for x
   x = 10,499,182,539.79/118,123.38
6. Step 6: Final answer
   x = 88,883.19