Finding the Fourth Proportional to 12,892.50, 19,334.70 and 4,994.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892.50 : 19,334.70 = 4,994.47 : x
2. Step 2: Convert to fraction form
   12,892.50/19,334.70 = 4,994.47/x
3. Step 3: Cross multiply
   12,892.50x = 19,334.70 × 4,994.47
4. Step 4: Simplify right side
   12,892.50x = 96,566,617.32
5. Step 5: Solve for x
   x = 96,566,617.32/12,892.50
6. Step 6: Final answer
   x = 7,490.14