Finding the Fourth Proportional to 89,762, 123,870.88 and 49,475.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,762 : 123,870.88 = 49,475.76 : x
2. Step 2: Convert to fraction form
   89,762/123,870.88 = 49,475.76/x
3. Step 3: Cross multiply
   89,762x = 123,870.88 × 49,475.76
4. Step 4: Simplify right side
   89,762x = 6,128,605,929.87
5. Step 5: Solve for x
   x = 6,128,605,929.87/89,762
6. Step 6: Final answer
   x = 68,276.17