Finding the Fourth Proportional to 256,231,073.24, 353,599,222.06 and 138,756,606.04

Step by Step Solution

1. Step 1: Write the proportion equation
   256,231,073.24 : 353,599,222.06 = 138,756,606.04 : x
2. Step 2: Convert to fraction form
   256,231,073.24/353,599,222.06 = 138,756,606.04/x
3. Step 3: Cross multiply
   256,231,073.24x = 353,599,222.06 × 138,756,606.04
4. Step 4: Simplify right side
   256,231,073.24x = 49,064,227,951,429,896
5. Step 5: Solve for x
   x = 49,064,227,951,429,896/256,231,073.24
6. Step 6: Final answer
   x = 191,484,300.99