Finding the Fourth Proportional to 118,427.55, 163,428.04 and 64,711.33

Step by Step Solution

1. Step 1: Write the proportion equation
   118,427.55 : 163,428.04 = 64,711.33 : x
2. Step 2: Convert to fraction form
   118,427.55/163,428.04 = 64,711.33/x
3. Step 3: Cross multiply
   118,427.55x = 163,428.04 × 64,711.33
4. Step 4: Simplify right side
   118,427.55x = 10,575,645,500.01
5. Step 5: Solve for x
   x = 10,575,645,500.01/118,427.55
6. Step 6: Final answer
   x = 89,300.55