Finding the Fourth Proportional to 119,161,142.72, 178,741,449.84 and 31,722,681.20

Step by Step Solution

1. Step 1: Write the proportion equation
   119,161,142.72 : 178,741,449.84 = 31,722,681.20 : x
2. Step 2: Convert to fraction form
   119,161,142.72/178,741,449.84 = 31,722,681.20/x
3. Step 3: Cross multiply
   119,161,142.72x = 178,741,449.84 × 31,722,681.20
4. Step 4: Simplify right side
   119,161,142.72x = 5,670,158,030,500,111
5. Step 5: Solve for x
   x = 5,670,158,030,500,111/119,161,142.72
6. Step 6: Final answer
   x = 47,583,951.45