Finding the Fourth Proportional to 213,146,196.72, 294,148,883.88 and 130,624,044.72

Step by Step Solution

1. Step 1: Write the proportion equation
   213,146,196.72 : 294,148,883.88 = 130,624,044.72 : x
2. Step 2: Convert to fraction form
   213,146,196.72/294,148,883.88 = 130,624,044.72/x
3. Step 3: Cross multiply
   213,146,196.72x = 294,148,883.88 × 130,624,044.72
4. Step 4: Simplify right side
   213,146,196.72x = 38,422,916,962,279,208
5. Step 5: Solve for x
   x = 38,422,916,962,279,208/213,146,196.72
6. Step 6: Final answer
   x = 180,265,552.72