Finding the Fourth Proportional to 158,490,323.30, 221,432,956.30 and 158,490,323.30

Step by Step Solution

1. Step 1: Write the proportion equation
   158,490,323.30 : 221,432,956.30 = 158,490,323.30 : x
2. Step 2: Convert to fraction form
   158,490,323.30/221,432,956.30 = 158,490,323.30/x
3. Step 3: Cross multiply
   158,490,323.30x = 221,432,956.30 × 158,490,323.30
4. Step 4: Simplify right side
   158,490,323.30x = 35,094,980,833,261,776
5. Step 5: Solve for x
   x = 35,094,980,833,261,776/158,490,323.30
6. Step 6: Final answer
   x = 221,432,956.30