Finding the Fourth Proportional to 10,470.90, 14,462.61 and 7,830.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,470.90 : 14,462.61 = 7,830.03 : x
2. Step 2: Convert to fraction form
   10,470.90/14,462.61 = 7,830.03/x
3. Step 3: Cross multiply
   10,470.90x = 14,462.61 × 7,830.03
4. Step 4: Simplify right side
   10,470.90x = 113,242,670.18
5. Step 5: Solve for x
   x = 113,242,670.18/10,470.90
6. Step 6: Final answer
   x = 10,814.99