Finding the Fourth Proportional to 52,259.89, 78,738.49 and 47,268.03

Step by Step Solution

1. Step 1: Write the proportion equation
   52,259.89 : 78,738.49 = 47,268.03 : x
2. Step 2: Convert to fraction form
   52,259.89/78,738.49 = 47,268.03/x
3. Step 3: Cross multiply
   52,259.89x = 78,738.49 × 47,268.03
4. Step 4: Simplify right side
   52,259.89x = 3,721,813,307.47
5. Step 5: Solve for x
   x = 3,721,813,307.47/52,259.89
6. Step 6: Final answer
   x = 71,217.40