Finding the Fourth Proportional to 53,196.84, 79,559.96 and 47,315

Step by Step Solution

1. Step 1: Write the proportion equation
   53,196.84 : 79,559.96 = 47,315 : x
2. Step 2: Convert to fraction form
   53,196.84/79,559.96 = 47,315/x
3. Step 3: Cross multiply
   53,196.84x = 79,559.96 × 47,315
4. Step 4: Simplify right side
   53,196.84x = 3,764,379,507.40
5. Step 5: Solve for x
   x = 3,764,379,507.40/53,196.84
6. Step 6: Final answer
   x = 70,763.22