Finding the Fourth Proportional to 52,870.62, 72,962.46 and 28,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,870.62 : 72,962.46 = 28,998.50 : x
2. Step 2: Convert to fraction form
   52,870.62/72,962.46 = 28,998.50/x
3. Step 3: Cross multiply
   52,870.62x = 72,962.46 × 28,998.50
4. Step 4: Simplify right side
   52,870.62x = 2,115,801,751.32
5. Step 5: Solve for x
   x = 2,115,801,751.32/52,870.62
6. Step 6: Final answer
   x = 40,018.48