Finding the Fourth Proportional to 105,085,556.82, 145,018,324.69 and 58,677,471.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,085,556.82 : 145,018,324.69 = 58,677,471.50 : x
2. Step 2: Convert to fraction form
   105,085,556.82/145,018,324.69 = 58,677,471.50/x
3. Step 3: Cross multiply
   105,085,556.82x = 145,018,324.69 × 58,677,471.50
4. Step 4: Simplify right side
   105,085,556.82x = 8,509,308,613,103,436
5. Step 5: Solve for x
   x = 8,509,308,613,103,436/105,085,556.82
6. Step 6: Final answer
   x = 80,975,053.76