Finding the Fourth Proportional to 72,240,265.63, 99,691,060.94 and 39,199,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,240,265.63 : 99,691,060.94 = 39,199,674.50 : x
2. Step 2: Convert to fraction form
   72,240,265.63/99,691,060.94 = 39,199,674.50/x
3. Step 3: Cross multiply
   72,240,265.63x = 99,691,060.94 × 39,199,674.50
4. Step 4: Simplify right side
   72,240,265.63x = 3,907,857,139,234,050.50
5. Step 5: Solve for x
   x = 3,907,857,139,234,050.50/72,240,265.63
6. Step 6: Final answer
   x = 54,095,276.44