Finding the Fourth Proportional to 47,059,591.88, 70,528,356.78 and 21,132,749

Step by Step Solution

1. Step 1: Write the proportion equation
   47,059,591.88 : 70,528,356.78 = 21,132,749 : x
2. Step 2: Convert to fraction form
   47,059,591.88/70,528,356.78 = 21,132,749/x
3. Step 3: Cross multiply
   47,059,591.88x = 70,528,356.78 × 21,132,749
4. Step 4: Simplify right side
   47,059,591.88x = 1,490,458,061,214,188.25
5. Step 5: Solve for x
   x = 1,490,458,061,214,188.25/47,059,591.88
6. Step 6: Final answer
   x = 31,671,716.68