Finding the Fourth Proportional to 42,321,012.77, 58,343,960.43 and 28,384,858.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,321,012.77 : 58,343,960.43 = 28,384,858.28 : x
2. Step 2: Convert to fraction form
   42,321,012.77/58,343,960.43 = 28,384,858.28/x
3. Step 3: Cross multiply
   42,321,012.77x = 58,343,960.43 × 28,384,858.28
4. Step 4: Simplify right side
   42,321,012.77x = 1,656,085,048,157,553.50
5. Step 5: Solve for x
   x = 1,656,085,048,157,553.50/42,321,012.77
6. Step 6: Final answer
   x = 39,131,507.96