Finding the Fourth Proportional to 139,758,001.41, 209,614,262.76 and 65,981,638.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,758,001.41 : 209,614,262.76 = 65,981,638.76 : x
2. Step 2: Convert to fraction form
   139,758,001.41/209,614,262.76 = 65,981,638.76/x
3. Step 3: Cross multiply
   139,758,001.41x = 209,614,262.76 × 65,981,638.76
4. Step 4: Simplify right side
   139,758,001.41x = 13,830,692,563,325,970
5. Step 5: Solve for x
   x = 13,830,692,563,325,970/139,758,001.41
6. Step 6: Final answer
   x = 98,961,722.58