Finding the Fourth Proportional to 90,245.31, 124,484.02 and 57,969.06

Step by Step Solution

1. Step 1: Write the proportion equation
   90,245.31 : 124,484.02 = 57,969.06 : x
2. Step 2: Convert to fraction form
   90,245.31/124,484.02 = 57,969.06/x
3. Step 3: Cross multiply
   90,245.31x = 124,484.02 × 57,969.06
4. Step 4: Simplify right side
   90,245.31x = 7,216,221,624.42
5. Step 5: Solve for x
   x = 7,216,221,624.42/90,245.31
6. Step 6: Final answer
   x = 79,962.29