Finding the Fourth Proportional to 290,106.86, 435,061.73 and 100,522.98

Step by Step Solution

1. Step 1: Write the proportion equation
   290,106.86 : 435,061.73 = 100,522.98 : x
2. Step 2: Convert to fraction form
   290,106.86/435,061.73 = 100,522.98/x
3. Step 3: Cross multiply
   290,106.86x = 435,061.73 × 100,522.98
4. Step 4: Simplify right side
   290,106.86x = 43,733,701,080.94
5. Step 5: Solve for x
   x = 43,733,701,080.94/290,106.86
6. Step 6: Final answer
   x = 150,750.32