Finding the Fourth Proportional to 72,050.41, 107,854.15 and 61,421.59

Step by Step Solution

1. Step 1: Write the proportion equation
   72,050.41 : 107,854.15 = 61,421.59 : x
2. Step 2: Convert to fraction form
   72,050.41/107,854.15 = 61,421.59/x
3. Step 3: Cross multiply
   72,050.41x = 107,854.15 × 61,421.59
4. Step 4: Simplify right side
   72,050.41x = 6,624,573,381.10
5. Step 5: Solve for x
   x = 6,624,573,381.10/72,050.41
6. Step 6: Final answer
   x = 91,943.59