Finding the Fourth Proportional to 353,357,543.52, 530,278,428.42 and 123,326,628.12

Step by Step Solution

1. Step 1: Write the proportion equation
   353,357,543.52 : 530,278,428.42 = 123,326,628.12 : x
2. Step 2: Convert to fraction form
   353,357,543.52/530,278,428.42 = 123,326,628.12/x
3. Step 3: Cross multiply
   353,357,543.52x = 530,278,428.42 × 123,326,628.12
4. Step 4: Simplify right side
   353,357,543.52x = 65,397,450,541,811,384
5. Step 5: Solve for x
   x = 65,397,450,541,811,384/353,357,543.52
6. Step 6: Final answer
   x = 185,074,442.99