Finding the Fourth Proportional to 144,456,347.94, 216,639,004.06 and 47,389,436.61

Step by Step Solution

1. Step 1: Write the proportion equation
   144,456,347.94 : 216,639,004.06 = 47,389,436.61 : x
2. Step 2: Convert to fraction form
   144,456,347.94/216,639,004.06 = 47,389,436.61/x
3. Step 3: Cross multiply
   144,456,347.94x = 216,639,004.06 × 47,389,436.61
4. Step 4: Simplify right side
   144,456,347.94x = 10,266,400,349,917,956
5. Step 5: Solve for x
   x = 10,266,400,349,917,956/144,456,347.94
6. Step 6: Final answer
   x = 71,069,222.62