Finding the Fourth Proportional to 118,134.02, 163,022.52 and 64,419.62

Step by Step Solution

1. Step 1: Write the proportion equation
   118,134.02 : 163,022.52 = 64,419.62 : x
2. Step 2: Convert to fraction form
   118,134.02/163,022.52 = 64,419.62/x
3. Step 3: Cross multiply
   118,134.02x = 163,022.52 × 64,419.62
4. Step 4: Simplify right side
   118,134.02x = 10,501,848,789.84
5. Step 5: Solve for x
   x = 10,501,848,789.84/118,134.02
6. Step 6: Final answer
   x = 88,897.75