Finding the Fourth Proportional to 9,920.16, 14,876.40 and 2,897.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,920.16 : 14,876.40 = 2,897.82 : x
2. Step 2: Convert to fraction form
   9,920.16/14,876.40 = 2,897.82/x
3. Step 3: Cross multiply
   9,920.16x = 14,876.40 × 2,897.82
4. Step 4: Simplify right side
   9,920.16x = 43,109,129.45
5. Step 5: Solve for x
   x = 43,109,129.45/9,920.16
6. Step 6: Final answer
   x = 4,345.61