Finding the Fourth Proportional to 118,413, 163,404.84 and 64,700.28

Step by Step Solution

1. Step 1: Write the proportion equation
   118,413 : 163,404.84 = 64,700.28 : x
2. Step 2: Convert to fraction form
   118,413/163,404.84 = 64,700.28/x
3. Step 3: Cross multiply
   118,413x = 163,404.84 × 64,700.28
4. Step 4: Simplify right side
   118,413x = 10,572,338,901.36
5. Step 5: Solve for x
   x = 10,572,338,901.36/118,413
6. Step 6: Final answer
   x = 89,283.60