Finding the Fourth Proportional to 13,291.83, 19,941.20 and 4,972.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,291.83 : 19,941.20 = 4,972.49 : x
2. Step 2: Convert to fraction form
   13,291.83/19,941.20 = 4,972.49/x
3. Step 3: Cross multiply
   13,291.83x = 19,941.20 × 4,972.49
4. Step 4: Simplify right side
   13,291.83x = 99,157,498.54
5. Step 5: Solve for x
   x = 99,157,498.54/13,291.83
6. Step 6: Final answer
   x = 7,460.03