Finding the Fourth Proportional to 60,570.63, 90,799.79 and 55,587.51

Step by Step Solution

1. Step 1: Write the proportion equation
   60,570.63 : 90,799.79 = 55,587.51 : x
2. Step 2: Convert to fraction form
   60,570.63/90,799.79 = 55,587.51/x
3. Step 3: Cross multiply
   60,570.63x = 90,799.79 × 55,587.51
4. Step 4: Simplify right side
   60,570.63x = 5,047,333,956.69
5. Step 5: Solve for x
   x = 5,047,333,956.69/60,570.63
6. Step 6: Final answer
   x = 83,329.73