Finding the Fourth Proportional to 139,223,052.99, 208,932,714.56 and 65,450,200.23

Step by Step Solution

1. Step 1: Write the proportion equation
   139,223,052.99 : 208,932,714.56 = 65,450,200.23 : x
2. Step 2: Convert to fraction form
   139,223,052.99/208,932,714.56 = 65,450,200.23/x
3. Step 3: Cross multiply
   139,223,052.99x = 208,932,714.56 × 65,450,200.23
4. Step 4: Simplify right side
   139,223,052.99x = 13,674,688,002,713,062
5. Step 5: Solve for x
   x = 13,674,688,002,713,062/139,223,052.99
6. Step 6: Final answer
   x = 98,221,434.66