Finding the Fourth Proportional to 89,640,429.64, 123,704,049.06 and 51,970,914.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,640,429.64 : 123,704,049.06 = 51,970,914.18 : x
2. Step 2: Convert to fraction form
   89,640,429.64/123,704,049.06 = 51,970,914.18/x
3. Step 3: Cross multiply
   89,640,429.64x = 123,704,049.06 × 51,970,914.18
4. Step 4: Simplify right side
   89,640,429.64x = 6,429,012,517,415,770
5. Step 5: Solve for x
   x = 6,429,012,517,415,770/89,640,429.64
6. Step 6: Final answer
   x = 71,720,010.08