Finding the Fourth Proportional to 21,541,510.92, 29,727,143.98 and 12,249,081.67

Step by Step Solution

1. Step 1: Write the proportion equation
   21,541,510.92 : 29,727,143.98 = 12,249,081.67 : x
2. Step 2: Convert to fraction form
   21,541,510.92/29,727,143.98 = 12,249,081.67/x
3. Step 3: Cross multiply
   21,541,510.92x = 29,727,143.98 × 12,249,081.67
4. Step 4: Simplify right side
   21,541,510.92x = 364,130,214,426,868.88
5. Step 5: Solve for x
   x = 364,130,214,426,868.88/21,541,510.92
6. Step 6: Final answer
   x = 16,903,652.48