Finding the Fourth Proportional to 9,147,784.18, 12,624,338.17 and 5,475,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147,784.18 : 12,624,338.17 = 5,475,990.50 : x
2. Step 2: Convert to fraction form
   9,147,784.18/12,624,338.17 = 5,475,990.50/x
3. Step 3: Cross multiply
   9,147,784.18x = 12,624,338.17 × 5,475,990.50
4. Step 4: Simplify right side
   9,147,784.18x = 69,130,755,810,895.72
5. Step 5: Solve for x
   x = 69,130,755,810,895.72/9,147,784.18
6. Step 6: Final answer
   x = 7,557,103.94