Finding the Fourth Proportional to 103,429.53, 155,153.20 and 28,549.69

Step by Step Solution

1. Step 1: Write the proportion equation
   103,429.53 : 155,153.20 = 28,549.69 : x
2. Step 2: Convert to fraction form
   103,429.53/155,153.20 = 28,549.69/x
3. Step 3: Cross multiply
   103,429.53x = 155,153.20 × 28,549.69
4. Step 4: Simplify right side
   103,429.53x = 4,429,575,762.51
5. Step 5: Solve for x
   x = 4,429,575,762.51/103,429.53
6. Step 6: Final answer
   x = 42,826.99