Finding the Fourth Proportional to 112,693.98, 169,106.58 and 42,578.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,693.98 : 169,106.58 = 42,578.76 : x
2. Step 2: Convert to fraction form
   112,693.98/169,106.58 = 42,578.76/x
3. Step 3: Cross multiply
   112,693.98x = 169,106.58 × 42,578.76
4. Step 4: Simplify right side
   112,693.98x = 7,200,348,484.24
5. Step 5: Solve for x
   x = 7,200,348,484.24/112,693.98
6. Step 6: Final answer
   x = 63,892.93