Finding the Fourth Proportional to 48,426.39, 72,643.76 and 13,366.05

Step by Step Solution

1. Step 1: Write the proportion equation
   48,426.39 : 72,643.76 = 13,366.05 : x
2. Step 2: Convert to fraction form
   48,426.39/72,643.76 = 13,366.05/x
3. Step 3: Cross multiply
   48,426.39x = 72,643.76 × 13,366.05
4. Step 4: Simplify right side
   48,426.39x = 970,960,061.52
5. Step 5: Solve for x
   x = 970,960,061.52/48,426.39
6. Step 6: Final answer
   x = 20,050.23