Finding the Fourth Proportional to 51,330.57, 70,835.52 and 28,669.98

Step by Step Solution

1. Step 1: Write the proportion equation
   51,330.57 : 70,835.52 = 28,669.98 : x
2. Step 2: Convert to fraction form
   51,330.57/70,835.52 = 28,669.98/x
3. Step 3: Cross multiply
   51,330.57x = 70,835.52 × 28,669.98
4. Step 4: Simplify right side
   51,330.57x = 2,030,852,941.69
5. Step 5: Solve for x
   x = 2,030,852,941.69/51,330.57
6. Step 6: Final answer
   x = 39,564.20