Finding the Fourth Proportional to 42,946,819.10, 64,338,947.12 and 25,386,804.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,946,819.10 : 64,338,947.12 = 25,386,804.38 : x
2. Step 2: Convert to fraction form
   42,946,819.10/64,338,947.12 = 25,386,804.38/x
3. Step 3: Cross multiply
   42,946,819.10x = 64,338,947.12 × 25,386,804.38
4. Step 4: Simplify right side
   42,946,819.10x = 1,633,360,264,550,604.25
5. Step 5: Solve for x
   x = 1,633,360,264,550,604.25/42,946,819.10
6. Step 6: Final answer
   x = 38,032,159.28