Finding the Fourth Proportional to 90,069.17, 135,100.69 and 42,706.95

Step by Step Solution

1. Step 1: Write the proportion equation
   90,069.17 : 135,100.69 = 42,706.95 : x
2. Step 2: Convert to fraction form
   90,069.17/135,100.69 = 42,706.95/x
3. Step 3: Cross multiply
   90,069.17x = 135,100.69 × 42,706.95
4. Step 4: Simplify right side
   90,069.17x = 5,769,738,412.80
5. Step 5: Solve for x
   x = 5,769,738,412.80/90,069.17
6. Step 6: Final answer
   x = 64,058.97