Finding the Fourth Proportional to 72,315.40, 97,314.75 and 72,315.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,315.40 : 97,314.75 = 72,315.40 : x
2. Step 2: Convert to fraction form
   72,315.40/97,314.75 = 72,315.40/x
3. Step 3: Cross multiply
   72,315.40x = 97,314.75 × 72,315.40
4. Step 4: Simplify right side
   72,315.40x = 7,037,355,072.15
5. Step 5: Solve for x
   x = 7,037,355,072.15/72,315.40
6. Step 6: Final answer
   x = 97,314.75