Finding the Fourth Proportional to 53,578.64, 73,923.59 and 42,212.93

Step by Step Solution

1. Step 1: Write the proportion equation
   53,578.64 : 73,923.59 = 42,212.93 : x
2. Step 2: Convert to fraction form
   53,578.64/73,923.59 = 42,212.93/x
3. Step 3: Cross multiply
   53,578.64x = 73,923.59 × 42,212.93
4. Step 4: Simplify right side
   53,578.64x = 3,120,531,065.93
5. Step 5: Solve for x
   x = 3,120,531,065.93/53,578.64
6. Step 6: Final answer
   x = 58,242.07