Finding the Fourth Proportional to 22,692,139.92, 31,316,634 and 12,903,495.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692,139.92 : 31,316,634 = 12,903,495.12 : x
2. Step 2: Convert to fraction form
   22,692,139.92/31,316,634 = 12,903,495.12/x
3. Step 3: Cross multiply
   22,692,139.92x = 31,316,634 × 12,903,495.12
4. Step 4: Simplify right side
   22,692,139.92x = 404,094,033,993,826.06
5. Step 5: Solve for x
   x = 404,094,033,993,826.06/22,692,139.92
6. Step 6: Final answer
   x = 17,807,665.36