Finding the Fourth Proportional to 31,320,947.10, 46,998,545.34 and 12,152,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,320,947.10 : 46,998,545.34 = 12,152,460.72 : x
2. Step 2: Convert to fraction form
   31,320,947.10/46,998,545.34 = 12,152,460.72/x
3. Step 3: Cross multiply
   31,320,947.10x = 46,998,545.34 × 12,152,460.72
4. Step 4: Simplify right side
   31,320,947.10x = 571,147,976,141,489.12
5. Step 5: Solve for x
   x = 571,147,976,141,489.12/31,320,947.10
6. Step 6: Final answer
   x = 18,235,335.42