Finding the Fourth Proportional to 52,870.84, 72,962.12 and 28,997.68

Step by Step Solution

1. Step 1: Write the proportion equation
   52,870.84 : 72,962.12 = 28,997.68 : x
2. Step 2: Convert to fraction form
   52,870.84/72,962.12 = 28,997.68/x
3. Step 3: Cross multiply
   52,870.84x = 72,962.12 × 28,997.68
4. Step 4: Simplify right side
   52,870.84x = 2,115,732,062.89
5. Step 5: Solve for x
   x = 2,115,732,062.89/52,870.84
6. Step 6: Final answer
   x = 40,017.00