Finding the Fourth Proportional to 39,970.10, 55,160.53 and 22,979.86

Step by Step Solution

1. Step 1: Write the proportion equation
   39,970.10 : 55,160.53 = 22,979.86 : x
2. Step 2: Convert to fraction form
   39,970.10/55,160.53 = 22,979.86/x
3. Step 3: Cross multiply
   39,970.10x = 55,160.53 × 22,979.86
4. Step 4: Simplify right side
   39,970.10x = 1,267,581,061.57
5. Step 5: Solve for x
   x = 1,267,581,061.57/39,970.10
6. Step 6: Final answer
   x = 31,713.23