Finding the Fourth Proportional to 66,443.86, 99,362.79 and 49,588.78

Step by Step Solution

1. Step 1: Write the proportion equation
   66,443.86 : 99,362.79 = 49,588.78 : x
2. Step 2: Convert to fraction form
   66,443.86/99,362.79 = 49,588.78/x
3. Step 3: Cross multiply
   66,443.86x = 99,362.79 × 49,588.78
4. Step 4: Simplify right side
   66,443.86x = 4,927,279,533.50
5. Step 5: Solve for x
   x = 4,927,279,533.50/66,443.86
6. Step 6: Final answer
   x = 74,157.03