Finding the Fourth Proportional to 42,270,456.99, 63,314,583.51 and 28,548,145.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,270,456.99 : 63,314,583.51 = 28,548,145.83 : x
2. Step 2: Convert to fraction form
   42,270,456.99/63,314,583.51 = 28,548,145.83/x
3. Step 3: Cross multiply
   42,270,456.99x = 63,314,583.51 × 28,548,145.83
4. Step 4: Simplify right side
   42,270,456.99x = 1,807,513,963,209,193
5. Step 5: Solve for x
   x = 1,807,513,963,209,193/42,270,456.99
6. Step 6: Final answer
   x = 42,760,691.32