Finding the Fourth Proportional to 90,494.42, 124,800.55 and 56,506.01

Step by Step Solution

1. Step 1: Write the proportion equation
   90,494.42 : 124,800.55 = 56,506.01 : x
2. Step 2: Convert to fraction form
   90,494.42/124,800.55 = 56,506.01/x
3. Step 3: Cross multiply
   90,494.42x = 124,800.55 × 56,506.01
4. Step 4: Simplify right side
   90,494.42x = 7,051,980,361.04
5. Step 5: Solve for x
   x = 7,051,980,361.04/90,494.42
6. Step 6: Final answer
   x = 77,927.24