Finding the Fourth Proportional to 94,780.62, 142,123.41 and 31,578.57

Step by Step Solution

1. Step 1: Write the proportion equation
   94,780.62 : 142,123.41 = 31,578.57 : x
2. Step 2: Convert to fraction form
   94,780.62/142,123.41 = 31,578.57/x
3. Step 3: Cross multiply
   94,780.62x = 142,123.41 × 31,578.57
4. Step 4: Simplify right side
   94,780.62x = 4,488,054,051.32
5. Step 5: Solve for x
   x = 4,488,054,051.32/94,780.62
6. Step 6: Final answer
   x = 47,352.02