Finding the Fourth Proportional to 12,298,787.90, 16,974,404.01 and 7,145,138.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298,787.90 : 16,974,404.01 = 7,145,138.82 : x
2. Step 2: Convert to fraction form
   12,298,787.90/16,974,404.01 = 7,145,138.82/x
3. Step 3: Cross multiply
   12,298,787.90x = 16,974,404.01 × 7,145,138.82
4. Step 4: Simplify right side
   12,298,787.90x = 121,284,473,038,214.69
5. Step 5: Solve for x
   x = 121,284,473,038,214.69/12,298,787.90
6. Step 6: Final answer
   x = 9,861,498.07