Finding the Fourth Proportional to 78,398.93, 108,190.62 and 42,588.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,398.93 : 108,190.62 = 42,588.93 : x
2. Step 2: Convert to fraction form
   78,398.93/108,190.62 = 42,588.93/x
3. Step 3: Cross multiply
   78,398.93x = 108,190.62 × 42,588.93
4. Step 4: Simplify right side
   78,398.93x = 4,607,723,147.55
5. Step 5: Solve for x
   x = 4,607,723,147.55/78,398.93
6. Step 6: Final answer
   x = 58,772.78