Finding the Fourth Proportional to 75,053.76, 112,570.92 and 28,300.56

Step by Step Solution

1. Step 1: Write the proportion equation
   75,053.76 : 112,570.92 = 28,300.56 : x
2. Step 2: Convert to fraction form
   75,053.76/112,570.92 = 28,300.56/x
3. Step 3: Cross multiply
   75,053.76x = 112,570.92 × 28,300.56
4. Step 4: Simplify right side
   75,053.76x = 3,185,820,075.72
5. Step 5: Solve for x
   x = 3,185,820,075.72/75,053.76
6. Step 6: Final answer
   x = 42,447.17