Finding the Fourth Proportional to 103,938.81, 155,937.38 and 47,796.09

Step by Step Solution

1. Step 1: Write the proportion equation
   103,938.81 : 155,937.38 = 47,796.09 : x
2. Step 2: Convert to fraction form
   103,938.81/155,937.38 = 47,796.09/x
3. Step 3: Cross multiply
   103,938.81x = 155,937.38 × 47,796.09
4. Step 4: Simplify right side
   103,938.81x = 7,453,196,809.86
5. Step 5: Solve for x
   x = 7,453,196,809.86/103,938.81
6. Step 6: Final answer
   x = 71,707.54