Finding the Fourth Proportional to 60,499.31, 90,767.42 and 30,937.91

Step by Step Solution

1. Step 1: Write the proportion equation
   60,499.31 : 90,767.42 = 30,937.91 : x
2. Step 2: Convert to fraction form
   60,499.31/90,767.42 = 30,937.91/x
3. Step 3: Cross multiply
   60,499.31x = 90,767.42 × 30,937.91
4. Step 4: Simplify right side
   60,499.31x = 2,808,154,121.32
5. Step 5: Solve for x
   x = 2,808,154,121.32/60,499.31
6. Step 6: Final answer
   x = 46,416.30