Finding the Fourth Proportional to 51,721,049.96, 77,632,061.94 and 42,714,896.60

Step by Step Solution

1. Step 1: Write the proportion equation
   51,721,049.96 : 77,632,061.94 = 42,714,896.60 : x
2. Step 2: Convert to fraction form
   51,721,049.96/77,632,061.94 = 42,714,896.60/x
3. Step 3: Cross multiply
   51,721,049.96x = 77,632,061.94 × 42,714,896.60
4. Step 4: Simplify right side
   51,721,049.96x = 3,316,045,498,611,895.50
5. Step 5: Solve for x
   x = 3,316,045,498,611,895.50/51,721,049.96
6. Step 6: Final answer
   x = 64,114,040.63