Finding the Fourth Proportional to 67,980.16, 93,812.48 and 38,172.16

Step by Step Solution

1. Step 1: Write the proportion equation
   67,980.16 : 93,812.48 = 38,172.16 : x
2. Step 2: Convert to fraction form
   67,980.16/93,812.48 = 38,172.16/x
3. Step 3: Cross multiply
   67,980.16x = 93,812.48 × 38,172.16
4. Step 4: Simplify right side
   67,980.16x = 3,581,024,996.56
5. Step 5: Solve for x
   x = 3,581,024,996.56/67,980.16
6. Step 6: Final answer
   x = 52,677.50