Finding the Fourth Proportional to 42,755.72, 64,132.86 and 15,053

Step by Step Solution

1. Step 1: Write the proportion equation
   42,755.72 : 64,132.86 = 15,053 : x
2. Step 2: Convert to fraction form
   42,755.72/64,132.86 = 15,053/x
3. Step 3: Cross multiply
   42,755.72x = 64,132.86 × 15,053
4. Step 4: Simplify right side
   42,755.72x = 965,391,941.58
5. Step 5: Solve for x
   x = 965,391,941.58/42,755.72
6. Step 6: Final answer
   x = 22,579.25