Finding the Fourth Proportional to 81,948.55, 122,932.34 and 28,624.02

Step by Step Solution

1. Step 1: Write the proportion equation
   81,948.55 : 122,932.34 = 28,624.02 : x
2. Step 2: Convert to fraction form
   81,948.55/122,932.34 = 28,624.02/x
3. Step 3: Cross multiply
   81,948.55x = 122,932.34 × 28,624.02
4. Step 4: Simplify right side
   81,948.55x = 3,518,817,615.69
5. Step 5: Solve for x
   x = 3,518,817,615.69/81,948.55
6. Step 6: Final answer
   x = 42,939.35