Finding the Fourth Proportional to 99,937.46, 137,900.42 and 64,175.92

Step by Step Solution

1. Step 1: Write the proportion equation
   99,937.46 : 137,900.42 = 64,175.92 : x
2. Step 2: Convert to fraction form
   99,937.46/137,900.42 = 64,175.92/x
3. Step 3: Cross multiply
   99,937.46x = 137,900.42 × 64,175.92
4. Step 4: Simplify right side
   99,937.46x = 8,849,886,321.89
5. Step 5: Solve for x
   x = 8,849,886,321.89/99,937.46
6. Step 6: Final answer
   x = 88,554.25