Finding the Fourth Proportional to 43,075.86, 64,547.82 and 28,983.71

Step by Step Solution

1. Step 1: Write the proportion equation
   43,075.86 : 64,547.82 = 28,983.71 : x
2. Step 2: Convert to fraction form
   43,075.86/64,547.82 = 28,983.71/x
3. Step 3: Cross multiply
   43,075.86x = 64,547.82 × 28,983.71
4. Step 4: Simplify right side
   43,075.86x = 1,870,834,973.27
5. Step 5: Solve for x
   x = 1,870,834,973.27/43,075.86
6. Step 6: Final answer
   x = 43,431.17