Finding the Fourth Proportional to 19,958,449.30, 29,925,864.15 and 10,392,511.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,958,449.30 : 29,925,864.15 = 10,392,511.30 : x
2. Step 2: Convert to fraction form
   19,958,449.30/29,925,864.15 = 10,392,511.30/x
3. Step 3: Cross multiply
   19,958,449.30x = 29,925,864.15 × 10,392,511.30
4. Step 4: Simplify right side
   19,958,449.30x = 311,004,881,341,139.88
5. Step 5: Solve for x
   x = 311,004,881,341,139.88/19,958,449.30
6. Step 6: Final answer
   x = 15,582,617.50