Finding the Fourth Proportional to 21,052,300.38, 31,578,429.42 and 7,924,169.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,052,300.38 : 31,578,429.42 = 7,924,169.94 : x
2. Step 2: Convert to fraction form
   21,052,300.38/31,578,429.42 = 7,924,169.94/x
3. Step 3: Cross multiply
   21,052,300.38x = 31,578,429.42 × 7,924,169.94
4. Step 4: Simplify right side
   21,052,300.38x = 250,232,841,162,375.66
5. Step 5: Solve for x
   x = 250,232,841,162,375.66/21,052,300.38
6. Step 6: Final answer
   x = 11,886,246.95