Finding the Fourth Proportional to 86,404.38, 129,557.71 and 35,774.77

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404.38 : 129,557.71 = 35,774.77 : x
2. Step 2: Convert to fraction form
   86,404.38/129,557.71 = 35,774.77/x
3. Step 3: Cross multiply
   86,404.38x = 129,557.71 × 35,774.77
4. Step 4: Simplify right side
   86,404.38x = 4,634,897,276.98
5. Step 5: Solve for x
   x = 4,634,897,276.98/86,404.38
6. Step 6: Final answer
   x = 53,641.93