Finding the Fourth Proportional to 92,346.56, 138,524 and 28,300.09

Step by Step Solution

1. Step 1: Write the proportion equation
   92,346.56 : 138,524 = 28,300.09 : x
2. Step 2: Convert to fraction form
   92,346.56/138,524 = 28,300.09/x
3. Step 3: Cross multiply
   92,346.56x = 138,524 × 28,300.09
4. Step 4: Simplify right side
   92,346.56x = 3,920,241,667.16
5. Step 5: Solve for x
   x = 3,920,241,667.16/92,346.56
6. Step 6: Final answer
   x = 42,451.41