Finding the Fourth Proportional to 185,988,362.57, 256,699,474.22 and 123,153,632.63

Step by Step Solution

1. Step 1: Write the proportion equation
   185,988,362.57 : 256,699,474.22 = 123,153,632.63 : x
2. Step 2: Convert to fraction form
   185,988,362.57/256,699,474.22 = 123,153,632.63/x
3. Step 3: Cross multiply
   185,988,362.57x = 256,699,474.22 × 123,153,632.63
4. Step 4: Simplify right side
   185,988,362.57x = 31,613,472,744,404,036
5. Step 5: Solve for x
   x = 31,613,472,744,404,036/185,988,362.57
6. Step 6: Final answer
   x = 169,975,542.06