Finding the Fourth Proportional to 71,931.24, 99,300.33 and 55,762.83

Step by Step Solution

1. Step 1: Write the proportion equation
   71,931.24 : 99,300.33 = 55,762.83 : x
2. Step 2: Convert to fraction form
   71,931.24/99,300.33 = 55,762.83/x
3. Step 3: Cross multiply
   71,931.24x = 99,300.33 × 55,762.83
4. Step 4: Simplify right side
   71,931.24x = 5,537,267,420.73
5. Step 5: Solve for x
   x = 5,537,267,420.73/71,931.24
6. Step 6: Final answer
   x = 76,980.01