Finding the Fourth Proportional to 64,081.54, 88,343.52 and 55,223.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,081.54 : 88,343.52 = 55,223.38 : x
2. Step 2: Convert to fraction form
   64,081.54/88,343.52 = 55,223.38/x
3. Step 3: Cross multiply
   64,081.54x = 88,343.52 × 55,223.38
4. Step 4: Simplify right side
   64,081.54x = 4,878,627,775.50
5. Step 5: Solve for x
   x = 4,878,627,775.50/64,081.54
6. Step 6: Final answer
   x = 76,131.56