Finding the Fourth Proportional to 69,087.72, 103,417.05 and 37,419.12

Step by Step Solution

1. Step 1: Write the proportion equation
   69,087.72 : 103,417.05 = 37,419.12 : x
2. Step 2: Convert to fraction form
   69,087.72/103,417.05 = 37,419.12/x
3. Step 3: Cross multiply
   69,087.72x = 103,417.05 × 37,419.12
4. Step 4: Simplify right side
   69,087.72x = 3,869,775,435.18
5. Step 5: Solve for x
   x = 3,869,775,435.18/69,087.72
6. Step 6: Final answer
   x = 56,012.49