Finding the Fourth Proportional to 57,744,495.78, 86,299,718.24 and 42,215,016.68

Step by Step Solution

1. Step 1: Write the proportion equation
   57,744,495.78 : 86,299,718.24 = 42,215,016.68 : x
2. Step 2: Convert to fraction form
   57,744,495.78/86,299,718.24 = 42,215,016.68/x
3. Step 3: Cross multiply
   57,744,495.78x = 86,299,718.24 × 42,215,016.68
4. Step 4: Simplify right side
   57,744,495.78x = 3,643,144,044,980,900
5. Step 5: Solve for x
   x = 3,643,144,044,980,900/57,744,495.78
6. Step 6: Final answer
   x = 63,090,758.62