Finding the Fourth Proportional to 90,566.32, 124,930.20 and 56,974

Step by Step Solution

1. Step 1: Write the proportion equation
   90,566.32 : 124,930.20 = 56,974 : x
2. Step 2: Convert to fraction form
   90,566.32/124,930.20 = 56,974/x
3. Step 3: Cross multiply
   90,566.32x = 124,930.20 × 56,974
4. Step 4: Simplify right side
   90,566.32x = 7,117,773,214.80
5. Step 5: Solve for x
   x = 7,117,773,214.80/90,566.32
6. Step 6: Final answer
   x = 78,591.83