Finding the Fourth Proportional to 143,485,057, 215,187,733.98 and 39,830,431.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,485,057 : 215,187,733.98 = 39,830,431.72 : x
2. Step 2: Convert to fraction form
   143,485,057/215,187,733.98 = 39,830,431.72/x
3. Step 3: Cross multiply
   143,485,057x = 215,187,733.98 × 39,830,431.72
4. Step 4: Simplify right side
   143,485,057x = 8,571,020,345,271,913
5. Step 5: Solve for x
   x = 8,571,020,345,271,913/143,485,057
6. Step 6: Final answer
   x = 59,734,585.08