Finding the Fourth Proportional to 31,326,443.56, 46,991,930.08 and 13,112,320.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,326,443.56 : 46,991,930.08 = 13,112,320.24 : x
2. Step 2: Convert to fraction form
   31,326,443.56/46,991,930.08 = 13,112,320.24/x
3. Step 3: Cross multiply
   31,326,443.56x = 46,991,930.08 × 13,112,320.24
4. Step 4: Simplify right side
   31,326,443.56x = 616,173,235,904,648.75
5. Step 5: Solve for x
   x = 616,173,235,904,648.75/31,326,443.56
6. Step 6: Final answer
   x = 19,669,428.31