Finding the Fourth Proportional to 138,241.47, 207,200.37 and 52,796.34

Step by Step Solution

1. Step 1: Write the proportion equation
   138,241.47 : 207,200.37 = 52,796.34 : x
2. Step 2: Convert to fraction form
   138,241.47/207,200.37 = 52,796.34/x
3. Step 3: Cross multiply
   138,241.47x = 207,200.37 × 52,796.34
4. Step 4: Simplify right side
   138,241.47x = 10,939,421,182.65
5. Step 5: Solve for x
   x = 10,939,421,182.65/138,241.47
6. Step 6: Final answer
   x = 79,132.70