Finding the Fourth Proportional to 10,447.61, 15,670.71 and 4,902.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,447.61 : 15,670.71 = 4,902.17 : x
2. Step 2: Convert to fraction form
   10,447.61/15,670.71 = 4,902.17/x
3. Step 3: Cross multiply
   10,447.61x = 15,670.71 × 4,902.17
4. Step 4: Simplify right side
   10,447.61x = 76,820,406.09
5. Step 5: Solve for x
   x = 76,820,406.09/10,447.61
6. Step 6: Final answer
   x = 7,352.92