Finding the Fourth Proportional to 9,345,768.83, 12,897,808.09 and 5,216,603.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345,768.83 : 12,897,808.09 = 5,216,603.48 : x
2. Step 2: Convert to fraction form
   9,345,768.83/12,897,808.09 = 5,216,603.48/x
3. Step 3: Cross multiply
   9,345,768.83x = 12,897,808.09 × 5,216,603.48
4. Step 4: Simplify right side
   9,345,768.83x = 67,282,750,566,666.16
5. Step 5: Solve for x
   x = 67,282,750,566,666.16/9,345,768.83
6. Step 6: Final answer
   x = 7,199,274.00