Finding the Fourth Proportional to 6,661,460.63, 9,977,057.31 and 5,213,117.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,661,460.63 : 9,977,057.31 = 5,213,117.82 : x
2. Step 2: Convert to fraction form
   6,661,460.63/9,977,057.31 = 5,213,117.82/x
3. Step 3: Cross multiply
   6,661,460.63x = 9,977,057.31 × 5,213,117.82
4. Step 4: Simplify right side
   6,661,460.63x = 52,011,575,253,922.27
5. Step 5: Solve for x
   x = 52,011,575,253,922.27/6,661,460.63
6. Step 6: Final answer
   x = 7,807,833.47