Finding the Fourth Proportional to 154,300,067.20, 212,934,650.19 and 83,735,662.07

Step by Step Solution

1. Step 1: Write the proportion equation
   154,300,067.20 : 212,934,650.19 = 83,735,662.07 : x
2. Step 2: Convert to fraction form
   154,300,067.20/212,934,650.19 = 83,735,662.07/x
3. Step 3: Cross multiply
   154,300,067.20x = 212,934,650.19 × 83,735,662.07
4. Step 4: Simplify right side
   154,300,067.20x = 17,830,223,911,303,500
5. Step 5: Solve for x
   x = 17,830,223,911,303,500/154,300,067.20
6. Step 6: Final answer
   x = 115,555,516.18