Finding the Fourth Proportional to 72,029,550.42, 99,400,838.81 and 38,989,697.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72,029,550.42 : 99,400,838.81 = 38,989,697.37 : x
2. Step 2: Convert to fraction form
   72,029,550.42/99,400,838.81 = 38,989,697.37/x
3. Step 3: Cross multiply
   72,029,550.42x = 99,400,838.81 × 38,989,697.37
4. Step 4: Simplify right side
   72,029,550.42x = 3,875,608,623,526,051
5. Step 5: Solve for x
   x = 3,875,608,623,526,051/72,029,550.42
6. Step 6: Final answer
   x = 53,805,814.43