Finding the Fourth Proportional to 69,061.31, 103,393.77 and 42,587.67

Step by Step Solution

1. Step 1: Write the proportion equation
   69,061.31 : 103,393.77 = 42,587.67 : x
2. Step 2: Convert to fraction form
   69,061.31/103,393.77 = 42,587.67/x
3. Step 3: Cross multiply
   69,061.31x = 103,393.77 × 42,587.67
4. Step 4: Simplify right side
   69,061.31x = 4,403,299,984.84
5. Step 5: Solve for x
   x = 4,403,299,984.84/69,061.31
6. Step 6: Final answer
   x = 63,759.29