Finding the Fourth Proportional to 21,541,510.42, 29,727,143.29 and 12,249,081.17

Step by Step Solution

1. Step 1: Write the proportion equation
   21,541,510.42 : 29,727,143.29 = 12,249,081.17 : x
2. Step 2: Convert to fraction form
   21,541,510.42/29,727,143.29 = 12,249,081.17/x
3. Step 3: Cross multiply
   21,541,510.42x = 29,727,143.29 × 12,249,081.17
4. Step 4: Simplify right side
   21,541,510.42x = 364,130,191,111,430.81
5. Step 5: Solve for x
   x = 364,130,191,111,430.81/21,541,510.42
6. Step 6: Final answer
   x = 16,903,651.79