Finding the Fourth Proportional to 158,490,472.30, 221,433,164.90 and 158,490,472.30

Step by Step Solution

1. Step 1: Write the proportion equation
   158,490,472.30 : 221,433,164.90 = 158,490,472.30 : x
2. Step 2: Convert to fraction form
   158,490,472.30/221,433,164.90 = 158,490,472.30/x
3. Step 3: Cross multiply
   158,490,472.30x = 221,433,164.90 × 158,490,472.30
4. Step 4: Simplify right side
   158,490,472.30x = 35,095,046,887,884,784
5. Step 5: Solve for x
   x = 35,095,046,887,884,784/158,490,472.30
6. Step 6: Final answer
   x = 221,433,164.90