Finding the Fourth Proportional to 9,036.90, 12,470.81 and 5,058.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.90 : 12,470.81 = 5,058.02 : x
2. Step 2: Convert to fraction form
   9,036.90/12,470.81 = 5,058.02/x
3. Step 3: Cross multiply
   9,036.90x = 12,470.81 × 5,058.02
4. Step 4: Simplify right side
   9,036.90x = 63,077,518.75
5. Step 5: Solve for x
   x = 63,077,518.75/9,036.90
6. Step 6: Final answer
   x = 6,979.99