Finding the Fourth Proportional to 64,314,481,568.72, 88,692,389,464.20 and 42,578,216,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,314,481,568.72 : 88,692,389,464.20 = 42,578,216,096.72 : x
2. Step 2: Convert to fraction form
   64,314,481,568.72/88,692,389,464.20 = 42,578,216,096.72/x
3. Step 3: Cross multiply
   64,314,481,568.72x = 88,692,389,464.20 × 42,578,216,096.72
4. Step 4: Simplify right side
   64,314,481,568.72x = 3,776,363,724,741,159,682,048
5. Step 5: Solve for x
   x = 3,776,363,724,741,159,682,048/64,314,481,568.72
6. Step 6: Final answer
   x = 58,717,160,313.36