Finding the Fourth Proportional to 60,389.10, 84,719.70 and 60,389.10

Step by Step Solution

1. Step 1: Write the proportion equation
   60,389.10 : 84,719.70 = 60,389.10 : x
2. Step 2: Convert to fraction form
   60,389.10/84,719.70 = 60,389.10/x
3. Step 3: Cross multiply
   60,389.10x = 84,719.70 × 60,389.10
4. Step 4: Simplify right side
   60,389.10x = 5,116,146,435.27
5. Step 5: Solve for x
   x = 5,116,146,435.27/60,389.10
6. Step 6: Final answer
   x = 84,719.70