Finding the Fourth Proportional to 81,548.64, 122,321.34 and 46,413

Step by Step Solution

1. Step 1: Write the proportion equation
   81,548.64 : 122,321.34 = 46,413 : x
2. Step 2: Convert to fraction form
   81,548.64/122,321.34 = 46,413/x
3. Step 3: Cross multiply
   81,548.64x = 122,321.34 × 46,413
4. Step 4: Simplify right side
   81,548.64x = 5,677,300,353.42
5. Step 5: Solve for x
   x = 5,677,300,353.42/81,548.64
6. Step 6: Final answer
   x = 69,618.58