Finding the Fourth Proportional to 60,465.36, 90,240.78 and 58,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,465.36 : 90,240.78 = 58,890.72 : x
2. Step 2: Convert to fraction form
   60,465.36/90,240.78 = 58,890.72/x
3. Step 3: Cross multiply
   60,465.36x = 90,240.78 × 58,890.72
4. Step 4: Simplify right side
   60,465.36x = 5,314,344,507.56
5. Step 5: Solve for x
   x = 5,314,344,507.56/60,465.36
6. Step 6: Final answer
   x = 87,890.73