Finding the Fourth Proportional to 52,338.72, 78,478.35 and 35,718.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,338.72 : 78,478.35 = 35,718.89 : x
2. Step 2: Convert to fraction form
   52,338.72/78,478.35 = 35,718.89/x
3. Step 3: Cross multiply
   52,338.72x = 78,478.35 × 35,718.89
4. Step 4: Simplify right side
   52,338.72x = 2,803,159,551.03
5. Step 5: Solve for x
   x = 2,803,159,551.03/52,338.72
6. Step 6: Final answer
   x = 53,558.05