Finding the Fourth Proportional to 98,743.72, 148,137.50 and 38,777.98

Step by Step Solution

1. Step 1: Write the proportion equation
   98,743.72 : 148,137.50 = 38,777.98 : x
2. Step 2: Convert to fraction form
   98,743.72/148,137.50 = 38,777.98/x
3. Step 3: Cross multiply
   98,743.72x = 148,137.50 × 38,777.98
4. Step 4: Simplify right side
   98,743.72x = 5,744,472,818.36
5. Step 5: Solve for x
   x = 5,744,472,818.36/98,743.72
6. Step 6: Final answer
   x = 58,175.58