Finding the Fourth Proportional to 22,692,140.92, 31,316,635.38 and 12,903,496.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692,140.92 : 31,316,635.38 = 12,903,496.12 : x
2. Step 2: Convert to fraction form
   22,692,140.92/31,316,635.38 = 12,903,496.12/x
3. Step 3: Cross multiply
   22,692,140.92x = 31,316,635.38 × 12,903,496.12
4. Step 4: Simplify right side
   22,692,140.92x = 404,094,083,117,284.69
5. Step 5: Solve for x
   x = 404,094,083,117,284.69/22,692,140.92
6. Step 6: Final answer
   x = 17,807,666.74