Finding the Fourth Proportional to 338,769,300.99, 508,178,239.94 and 141,834,538.22

Step by Step Solution

1. Step 1: Write the proportion equation
   338,769,300.99 : 508,178,239.94 = 141,834,538.22 : x
2. Step 2: Convert to fraction form
   338,769,300.99/508,178,239.94 = 141,834,538.22/x
3. Step 3: Cross multiply
   338,769,300.99x = 508,178,239.94 × 141,834,538.22
4. Step 4: Simplify right side
   338,769,300.99x = 72,077,225,995,342,256
5. Step 5: Solve for x
   x = 72,077,225,995,342,256/338,769,300.99
6. Step 6: Final answer
   x = 212,761,976.32