Finding the Fourth Proportional to 51,076.79, 70,488.26 and 42,564.67

Step by Step Solution

1. Step 1: Write the proportion equation
   51,076.79 : 70,488.26 = 42,564.67 : x
2. Step 2: Convert to fraction form
   51,076.79/70,488.26 = 42,564.67/x
3. Step 3: Cross multiply
   51,076.79x = 70,488.26 × 42,564.67
4. Step 4: Simplify right side
   51,076.79x = 3,000,309,525.77
5. Step 5: Solve for x
   x = 3,000,309,525.77/51,076.79
6. Step 6: Final answer
   x = 58,741.15