Finding the Fourth Proportional to 85,815, 128,599.83 and 37,726.02

Step by Step Solution

1. Step 1: Write the proportion equation
   85,815 : 128,599.83 = 37,726.02 : x
2. Step 2: Convert to fraction form
   85,815/128,599.83 = 37,726.02/x
3. Step 3: Cross multiply
   85,815x = 128,599.83 × 37,726.02
4. Step 4: Simplify right side
   85,815x = 4,851,559,758.58
5. Step 5: Solve for x
   x = 4,851,559,758.58/85,815
6. Step 6: Final answer
   x = 56,535.10