Finding the Fourth Proportional to 99,899.88, 149,855.58 and 37,570.92

Step by Step Solution

1. Step 1: Write the proportion equation
   99,899.88 : 149,855.58 = 37,570.92 : x
2. Step 2: Convert to fraction form
   99,899.88/149,855.58 = 37,570.92/x
3. Step 3: Cross multiply
   99,899.88x = 149,855.58 × 37,570.92
4. Step 4: Simplify right side
   99,899.88x = 5,630,212,007.73
5. Step 5: Solve for x
   x = 5,630,212,007.73/99,899.88
6. Step 6: Final answer
   x = 56,358.55