Finding the Fourth Proportional to 42,376.83, 58,490.78 and 28,953.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,376.83 : 58,490.78 = 28,953.51 : x
2. Step 2: Convert to fraction form
   42,376.83/58,490.78 = 28,953.51/x
3. Step 3: Cross multiply
   42,376.83x = 58,490.78 × 28,953.51
4. Step 4: Simplify right side
   42,376.83x = 1,693,513,238.87
5. Step 5: Solve for x
   x = 1,693,513,238.87/42,376.83
6. Step 6: Final answer
   x = 39,963.19