Finding the Fourth Proportional to 72,321,182.91, 99,803,964.85 and 39,282,077.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,321,182.91 : 99,803,964.85 = 39,282,077.18 : x
2. Step 2: Convert to fraction form
   72,321,182.91/99,803,964.85 = 39,282,077.18/x
3. Step 3: Cross multiply
   72,321,182.91x = 99,803,964.85 × 39,282,077.18
4. Step 4: Simplify right side
   72,321,182.91x = 3,920,507,050,259,011.50
5. Step 5: Solve for x
   x = 3,920,507,050,259,011.50/72,321,182.91
6. Step 6: Final answer
   x = 54,209,664.34