Finding the Fourth Proportional to 64,017.54, 88,278.66 and 42,499.71

Step by Step Solution

1. Step 1: Write the proportion equation
   64,017.54 : 88,278.66 = 42,499.71 : x
2. Step 2: Convert to fraction form
   64,017.54/88,278.66 = 42,499.71/x
3. Step 3: Cross multiply
   64,017.54x = 88,278.66 × 42,499.71
4. Step 4: Simplify right side
   64,017.54x = 3,751,817,449.19
5. Step 5: Solve for x
   x = 3,751,817,449.19/64,017.54
6. Step 6: Final answer
   x = 58,606.09