Finding the Fourth Proportional to 42,767.53, 64,151.33 and 11,602.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,767.53 : 64,151.33 = 11,602.78 : x
2. Step 2: Convert to fraction form
   42,767.53/64,151.33 = 11,602.78/x
3. Step 3: Cross multiply
   42,767.53x = 64,151.33 × 11,602.78
4. Step 4: Simplify right side
   42,767.53x = 744,333,550.31
5. Step 5: Solve for x
   x = 744,333,550.31/42,767.53
6. Step 6: Final answer
   x = 17,404.18