Finding the Fourth Proportional to 103,061.58, 155,294.37 and 84,751.74

Step by Step Solution

1. Step 1: Write the proportion equation
   103,061.58 : 155,294.37 = 84,751.74 : x
2. Step 2: Convert to fraction form
   103,061.58/155,294.37 = 84,751.74/x
3. Step 3: Cross multiply
   103,061.58x = 155,294.37 × 84,751.74
4. Step 4: Simplify right side
   103,061.58x = 13,161,468,069.70
5. Step 5: Solve for x
   x = 13,161,468,069.70/103,061.58
6. Step 6: Final answer
   x = 127,704.89