Finding the Fourth Proportional to 52,145.84, 77,547.90 and 50,485.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,145.84 : 77,547.90 = 50,485.10 : x
2. Step 2: Convert to fraction form
   52,145.84/77,547.90 = 50,485.10/x
3. Step 3: Cross multiply
   52,145.84x = 77,547.90 × 50,485.10
4. Step 4: Simplify right side
   52,145.84x = 3,915,013,098.55
5. Step 5: Solve for x
   x = 3,915,013,098.55/52,145.84
6. Step 6: Final answer
   x = 75,078.16