Finding the Fourth Proportional to 49,886,141.76, 74,869,514.88 and 21,152,453.76

Step by Step Solution

1. Step 1: Write the proportion equation
   49,886,141.76 : 74,869,514.88 = 21,152,453.76 : x
2. Step 2: Convert to fraction form
   49,886,141.76/74,869,514.88 = 21,152,453.76/x
3. Step 3: Cross multiply
   49,886,141.76x = 74,869,514.88 × 21,152,453.76
4. Step 4: Simplify right side
   49,886,141.76x = 1,583,673,951,532,832
5. Step 5: Solve for x
   x = 1,583,673,951,532,832/49,886,141.76
6. Step 6: Final answer
   x = 31,745,769.38