Finding the Fourth Proportional to 38,139,688.17, 52,632,377.51 and 28,393,716.33

Step by Step Solution

1. Step 1: Write the proportion equation
   38,139,688.17 : 52,632,377.51 = 28,393,716.33 : x
2. Step 2: Convert to fraction form
   38,139,688.17/52,632,377.51 = 28,393,716.33/x
3. Step 3: Cross multiply
   38,139,688.17x = 52,632,377.51 × 28,393,716.33
4. Step 4: Simplify right side
   38,139,688.17x = 1,494,428,796,650,443.25
5. Step 5: Solve for x
   x = 1,494,428,796,650,443.25/38,139,688.17
6. Step 6: Final answer
   x = 39,183,036.58