Finding the Fourth Proportional to 78,503.63, 108,334.47 and 42,693.54

Step by Step Solution

1. Step 1: Write the proportion equation
   78,503.63 : 108,334.47 = 42,693.54 : x
2. Step 2: Convert to fraction form
   78,503.63/108,334.47 = 42,693.54/x
3. Step 3: Cross multiply
   78,503.63x = 108,334.47 × 42,693.54
4. Step 4: Simplify right side
   78,503.63x = 4,625,182,028.32
5. Step 5: Solve for x
   x = 4,625,182,028.32/78,503.63
6. Step 6: Final answer
   x = 58,916.80