Finding the Fourth Proportional to 57,087,231.50, 78,780,419.98 and 30,981,743.12

Step by Step Solution

1. Step 1: Write the proportion equation
   57,087,231.50 : 78,780,419.98 = 30,981,743.12 : x
2. Step 2: Convert to fraction form
   57,087,231.50/78,780,419.98 = 30,981,743.12/x
3. Step 3: Cross multiply
   57,087,231.50x = 78,780,419.98 × 30,981,743.12
4. Step 4: Simplify right side
   57,087,231.50x = 2,440,754,734,706,075.50
5. Step 5: Solve for x
   x = 2,440,754,734,706,075.50/57,087,231.50
6. Step 6: Final answer
   x = 42,754,827.49