Finding the Fourth Proportional to 7,980.80, 12,030.93 and 7,445.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,980.80 : 12,030.93 = 7,445.59 : x
2. Step 2: Convert to fraction form
   7,980.80/12,030.93 = 7,445.59/x
3. Step 3: Cross multiply
   7,980.80x = 12,030.93 × 7,445.59
4. Step 4: Simplify right side
   7,980.80x = 89,577,342.02
5. Step 5: Solve for x
   x = 89,577,342.02/7,980.80
6. Step 6: Final answer
   x = 11,224.11