Finding the Fourth Proportional to 9,285,940.74, 12,813,973.74 and 5,155,758.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,285,940.74 : 12,813,973.74 = 5,155,758.42 : x
2. Step 2: Convert to fraction form
   9,285,940.74/12,813,973.74 = 5,155,758.42/x
3. Step 3: Cross multiply
   9,285,940.74x = 12,813,973.74 × 5,155,758.42
4. Step 4: Simplify right side
   9,285,940.74x = 66,065,753,003,663.89
5. Step 5: Solve for x
   x = 66,065,753,003,663.89/9,285,940.74
6. Step 6: Final answer
   x = 7,114,599.89