Finding the Fourth Proportional to 309,766,007.32, 427,461,713.76 and 170,533,779.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,766,007.32 : 427,461,713.76 = 170,533,779.72 : x
2. Step 2: Convert to fraction form
   309,766,007.32/427,461,713.76 = 170,533,779.72/x
3. Step 3: Cross multiply
   309,766,007.32x = 427,461,713.76 × 170,533,779.72
4. Step 4: Simplify right side
   309,766,007.32x = 72,896,661,733,081,536
5. Step 5: Solve for x
   x = 72,896,661,733,081,536/309,766,007.32
6. Step 6: Final answer
   x = 235,328,150.96