Finding the Fourth Proportional to 42,148,949.92, 63,232,449.56 and 12,607,460.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,148,949.92 : 63,232,449.56 = 12,607,460.52 : x
2. Step 2: Convert to fraction form
   42,148,949.92/63,232,449.56 = 12,607,460.52/x
3. Step 3: Cross multiply
   42,148,949.92x = 63,232,449.56 × 12,607,460.52
4. Step 4: Simplify right side
   42,148,949.92x = 797,200,611,410,591.38
5. Step 5: Solve for x
   x = 797,200,611,410,591.38/42,148,949.92
6. Step 6: Final answer
   x = 18,913,890.21