Finding the Fourth Proportional to 139,065,858.42, 208,440,106.53 and 56,014,454.31

Step by Step Solution

1. Step 1: Write the proportion equation
   139,065,858.42 : 208,440,106.53 = 56,014,454.31 : x
2. Step 2: Convert to fraction form
   139,065,858.42/208,440,106.53 = 56,014,454.31/x
3. Step 3: Cross multiply
   139,065,858.42x = 208,440,106.53 × 56,014,454.31
4. Step 4: Simplify right side
   139,065,858.42x = 11,675,658,823,596,218
5. Step 5: Solve for x
   x = 11,675,658,823,596,218/139,065,858.42
6. Step 6: Final answer
   x = 83,957,766.17