Finding the Fourth Proportional to 85,200.39, 117,574.96 and 46,438.55

Step by Step Solution

1. Step 1: Write the proportion equation
   85,200.39 : 117,574.96 = 46,438.55 : x
2. Step 2: Convert to fraction form
   85,200.39/117,574.96 = 46,438.55/x
3. Step 3: Cross multiply
   85,200.39x = 117,574.96 × 46,438.55
4. Step 4: Simplify right side
   85,200.39x = 5,460,009,838.64
5. Step 5: Solve for x
   x = 5,460,009,838.64/85,200.39
6. Step 6: Final answer
   x = 64,084.33