Finding the Fourth Proportional to 139,467,615.67, 209,201,422.53 and 50,842,832.77

Step by Step Solution

1. Step 1: Write the proportion equation
   139,467,615.67 : 209,201,422.53 = 50,842,832.77 : x
2. Step 2: Convert to fraction form
   139,467,615.67/209,201,422.53 = 50,842,832.77/x
3. Step 3: Cross multiply
   139,467,615.67x = 209,201,422.53 × 50,842,832.77
4. Step 4: Simplify right side
   139,467,615.67x = 10,636,392,940,938,902
5. Step 5: Solve for x
   x = 10,636,392,940,938,902/139,467,615.67
6. Step 6: Final answer
   x = 76,264,248.80