Finding the Fourth Proportional to 28,238.15, 42,356.50 and 7,461.83

Step by Step Solution

1. Step 1: Write the proportion equation
   28,238.15 : 42,356.50 = 7,461.83 : x
2. Step 2: Convert to fraction form
   28,238.15/42,356.50 = 7,461.83/x
3. Step 3: Cross multiply
   28,238.15x = 42,356.50 × 7,461.83
4. Step 4: Simplify right side
   28,238.15x = 316,056,771.96
5. Step 5: Solve for x
   x = 316,056,771.96/28,238.15
6. Step 6: Final answer
   x = 11,192.55