Finding the Fourth Proportional to 6,661,498.73, 9,977,114.01 and 5,213,155.92

Step by Step Solution

1. Step 1: Write the proportion equation
   6,661,498.73 : 9,977,114.01 = 5,213,155.92 : x
2. Step 2: Convert to fraction form
   6,661,498.73/9,977,114.01 = 5,213,155.92/x
3. Step 3: Cross multiply
   6,661,498.73x = 9,977,114.01 × 5,213,155.92
4. Step 4: Simplify right side
   6,661,498.73x = 52,012,250,947,881.59
5. Step 5: Solve for x
   x = 52,012,250,947,881.59/6,661,498.73
6. Step 6: Final answer
   x = 7,807,890.25