Finding the Fourth Proportional to 42,685,834.78, 64,028,538.06 and 10,337,736.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,685,834.78 : 64,028,538.06 = 10,337,736.46 : x
2. Step 2: Convert to fraction form
   42,685,834.78/64,028,538.06 = 10,337,736.46/x
3. Step 3: Cross multiply
   42,685,834.78x = 64,028,538.06 × 10,337,736.46
4. Step 4: Simplify right side
   42,685,834.78x = 661,910,152,383,359.75
5. Step 5: Solve for x
   x = 661,910,152,383,359.75/42,685,834.78
6. Step 6: Final answer
   x = 15,506,552.84