Finding the Fourth Proportional to 21,086,826.47, 31,631,627.58 and 5,525,036.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,086,826.47 : 31,631,627.58 = 5,525,036.10 : x
2. Step 2: Convert to fraction form
   21,086,826.47/31,631,627.58 = 5,525,036.10/x
3. Step 3: Cross multiply
   21,086,826.47x = 31,631,627.58 × 5,525,036.10
4. Step 4: Simplify right side
   21,086,826.47x = 174,765,884,393,108.59
5. Step 5: Solve for x
   x = 174,765,884,393,108.59/21,086,826.47
6. Step 6: Final answer
   x = 8,287,917.80