Finding the Fourth Proportional to 139,359,459.86, 209,025,682.20 and 42,316,020.44

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359,459.86 : 209,025,682.20 = 42,316,020.44 : x
2. Step 2: Convert to fraction form
   139,359,459.86/209,025,682.20 = 42,316,020.44/x
3. Step 3: Cross multiply
   139,359,459.86x = 209,025,682.20 × 42,316,020.44
4. Step 4: Simplify right side
   139,359,459.86x = 8,845,135,040,460,143
5. Step 5: Solve for x
   x = 8,845,135,040,460,143/139,359,459.86
6. Step 6: Final answer
   x = 63,469,929.13